BACKGROUND With 4.9 to 35 instances per 100000 cases,hyperparathyroidism is one of the rarest causes of acute pancreatitis.The major cause of primary hyperparathyroidism is a parathyroid adenoma,which can manifest cli...BACKGROUND With 4.9 to 35 instances per 100000 cases,hyperparathyroidism is one of the rarest causes of acute pancreatitis.The major cause of primary hyperparathyroidism is a parathyroid adenoma,which can manifest clinically in various ways.CASE SUMMARY We discuss the unusual case of a 13-year-old boy with recurrent pancreatitis as the initial presentation of primary hyperparathyroidism.The cause of his recurrent pancreatitis remained unknown,and the patient had multiple admissions with acute pancreatitis over 3 years.His diagnosis was delayed due to the initial normal levels of parathyroid hormone,which were later reported elevated in a subsequent episode where ultrasound neck and thyroid scintigraphy revealed a parathyroid adenoma as the underlying cause.After the diagnosis was made,he underwent surgical resection of the adenoma.CONCLUSION This case study stresses the importance of considering uncommon causes for recurrent pancreatitis.展开更多
BACKGROUND Primary hyperparathyroidism is typically caused by a single parathyroid adenoma.Ectopic parathyroid adenomas occur as well,with cases involving various sites,including the mediastinum,presenting in varying ...BACKGROUND Primary hyperparathyroidism is typically caused by a single parathyroid adenoma.Ectopic parathyroid adenomas occur as well,with cases involving various sites,including the mediastinum,presenting in varying frequencies.Secondary hyperparathyroidism develops in the context of chronic kidney disease,primarily due to vitamin D deficiency,hypocalcemia,and hyperphosphatemia.It is frequently diagnosed in patients undergoing dialysis.This article presents a rare case of hyperparathyroidism involving multiple hyperplastic parathyroid glands with pulmonary seeding in a 50-year-old female patient undergoing hemodialysis(HD).CASE SUMMARY The patient had a history of parathyroidectomy 10 years prior but developed recurrent hyperparathyroidism with symptoms of pruritus and cough with sputum during a period of routine dialysis.Radiographic imaging revealed multiple nodules in both lungs,with the largest measuring approximately 1.35 cm.Surgical histopathology confirmed the presence of hyperplastic parathyroid glands within the pulmonary tissue.After tumor resection surgery via videoassisted thoracic surgery with wedge resection,the patient was discharged in stable condition and in follow-up her symptoms showed improvement.CONCLUSION This article describes hyperparathyroidism presenting as pulmonary nodules in a patient undergoing postparathyroidectomy HD,highlighting diagnostic challenges and a positive outcome from tumor resection surgery.展开更多
Primary hyperparathyroidism(pHPT)is the third most common endocrine disease.The surgical procedure aims for permanent cure,but recurrence has been reported in 4%-10%of pHPT patients.Preoperative localization imaging i...Primary hyperparathyroidism(pHPT)is the third most common endocrine disease.The surgical procedure aims for permanent cure,but recurrence has been reported in 4%-10%of pHPT patients.Preoperative localization imaging is highly valuable.It includes ultrasound,computed tomography(CT),single-photonemission CT,sestamibi scintigraphy and magnetic resonance imaging.The operation has been defined as successful when postoperative continuous eucalcemia exists for more than the first six months.Ongoing hypercalcemia during this period is defined as persistence,and recurrence is defined as hypercalcemia after six months of normocalcemia.Vitamin D is a crucial factor for a good outcome.Intraoperative parathyroid hormone(PTH)monitoring can safely predict the outcomes and should be suggested.PTH≤40 pg/mL or the traditional decrease≥50%from baseline minimizes the likelihood of persistence.Risk factors for persistence are hyperplasia and normal parathyroid tissue on histopathology.Risk factors for recurrence are cardiac history,obesity,endoscopic approach and low-volume center(at least 31 cases/year).Cases with double adenomas or four-gland hyperplasia have a greater likelihood of persistence/recurrence.A 6-mo calcium>9.7 mg/dL and eucalcemic parathyroid hormone elevation at 6 mo may be associated with recurrence necessitating long-term follow-up.18F-fluorocholine positron emission tomography and 4-dimensional CT in persistent and recurrent cases can be valuable before reoperation.With these novel advances in preoperative imaging and localization as well as intraoperative PTH measurement,the recurrence rate has dropped to 2.5%-5%.Sixmonth serum calcium≥9.8 mg/dL and parathyroid hormone≥80 pg/mL indicate a risk of recurrence.Negative sestamibi scintigraphy,diabetes and elevated osteocalcin levels are predictors of multiglandular disease,which brings an increased risk of persistence and recurrence.Bilateral neck exploration was considered the gold-standard diagnostic method.Minimally invasive parathyroidectomy and neck exploration are both effective surgical techniques.Multidisciplinary diagnostic and surgical management is required to prevent persistence and recurrence.Long-term follow-up,even up to 10 years,is necessary.展开更多
We report the case of a female patient with severe acute necrotizing pancreatitis associated with hypercalcemia as first manifestation of primary hyperparathyroidism caused by a benign parathyroid adenoma.Initially th...We report the case of a female patient with severe acute necrotizing pancreatitis associated with hypercalcemia as first manifestation of primary hyperparathyroidism caused by a benign parathyroid adenoma.Initially the acute pancreatitis was treated conservatively.The patient subsequently underwent surgical resection of the parathyroid adenoma and surgical clearance of a large infected pancreatic pseudocyst.Although the association of parathyroid adenoma-induced hypercalcemia and acute pancreatitis is a known medical entity,it is very uncommon.The pathophysiology of hypercalcemia-induced acute pancreatitis is therefore not well known,although some mechanisms have been proposed.It is important to treat the provoking factor.Therefore,the cause of hypercalcemia should be identif ied early.Surgical resection of the parathyroid adenoma is the ultimate therapy.展开更多
Skeletal derangements occur quite often in patient with primary hyperparathyroidism (PHPT). We investigated parathyroid and bone imagings in 59 cases of pathologically proven PHPT. Forty-nine cases were pathologically...Skeletal derangements occur quite often in patient with primary hyperparathyroidism (PHPT). We investigated parathyroid and bone imagings in 59 cases of pathologically proven PHPT. Forty-nine cases were pathologically proven parathyroid adenomas; 8 presented hyperplasia and the other 2 were adenocarcinomas. Parathyroid imaging (early phase imaging, EPI) was conducted at 30 min after injecting 740～925MBq 99mTc-MIBI and 2～3h later (delayed phase imaging, DPI) separately. The following thyroid imagings were performed at the same posture 10 min after intravenous injection of 74～111MBq 99mTcO4-. The 99mTc- MIBI subtraction imaging data were obtained by subtracting thyroid imaging from that of DPI. Among 49 cases of proven hyperparathyroid adenoma 45 yielded positive imagings. Eight cases with hyperplasia gave negative results. The results were positive in 2 cases of parathyroid adenocarcinoma. Results of 99mTc-MDP/bone imaging: 35 cases of hyperparathyroid adenocarcinoma (disease duration 1-6 months) showed normal bone images, while 14 cases showed superscan images, course being 4-12 months. Bone imaging for 2 cases of adenocarcinoma showed multiple, radioactive aggregated foci (brown tumor imaging); course lasting 10-24 months. The results of bone imaging in 8 cases of hyperplasia/ hyperparathyroidism were normal. It was concluded that diagnostic accuracy for parathyroid was 79.6% and for parathyroid adenoma was 91.8%, and the technique has no diagnostic value for hyperplasia. The 99mTc-MDP / bone imaging results for PHPT can be classified into three categories, i.e. normal, superscan and brown tumor. The imaging results correlated well with the different categories and degrees of bone damage, the duration of clinical course and the pathological types. Therefore, it's important to use bone imaging data in association with therapy to reflect the stage and progress of PHPT.展开更多
AIM To evaluate the parathyroid ultrasonography and define parameters that can predict poor response to treatment in patients with secondary hyperparathyroidism due to renal failure.METHODS This cohort study evaluated...AIM To evaluate the parathyroid ultrasonography and define parameters that can predict poor response to treatment in patients with secondary hyperparathyroidism due to renal failure.METHODS This cohort study evaluated 85 patients with chronic kidney disease stage V with parathyroid hormone levels above 800 pg/mL. All patients underwent ultrasonography of the parathyroids and the following parameters were analyzed: Demographic characteristics(etiology of chronic kidney disease, gender, age, dialysis vintage, vascular access, use of vitamin D), laboratory(calcium, phosphorus, parathyroid hormone, alkaline phosphatase, bone alkaline phosphatase), and the occurrence of bone changes, cardiovascular events and death. The χ~2 test were used to compare proportions or the Fisher exact test for small sample frequencies. Student t-test was used to detect differences between the two groups regarding continuous variables.RESULTS Fifty-three patients(66.4%) had parathyroid nodules with higher levels of parathyroid hormone, calcium and phosphorus. Sixteen patients underwent parathyroidectomy and had higher levels of phosphorus and calcium × phosphorus product(P = 0.03 and P = 0.006, respectively). They also had lower mortality(32% vs 68%, P = 0.01) and lower incidence of cardiovascular or cerebrovascular events(27% vs 73%, P = 0.02). Calcium × phosphorus product above 55 mg^2/dL^2 [RR 1.48(1.06, 2.08), P = 0.03], presence of vascular calcification [1.33(1.01, 1.76), P = 0.015] and previous occurrence of vascular events [RR 2.25(1.27, 3.98), P < 0.001] were risk factors for mortality in this population. There was no association between the occurrence of nodules and mortality.CONCLUSION The identification of nodules at ultrasonography strengthens the indication for parathyroidectomy in patients with secondary hyperparathyroidism due to renal failure.展开更多
BACKGROUND Acute pancreatitis(AP)presenting as an initial manifestation of primary hyperparathyroidism(PHPT)is uncommon,and its timely diagnosis is crucial in preventing recurrent attacks of pancreatitis.AIM To determ...BACKGROUND Acute pancreatitis(AP)presenting as an initial manifestation of primary hyperparathyroidism(PHPT)is uncommon,and its timely diagnosis is crucial in preventing recurrent attacks of pancreatitis.AIM To determine the clinical,biochemical,and radiological profile of PHPT patients presenting as AP.METHODS This is a retrospective observational study,51 consecutive patients admitted with the diagnosis of PHPT during January 2010 and October 2021 at a tertiary care hospital in Puducherry,India was included.The diagnosis of AP was established in the presence of at least two of the three following features:abdominal pain,levels of serum amylase or lipase greater than three times the normal,and characteristic features at abdominal imaging.RESULTS Out of the 51 consecutive patients with PHPT,twelve(23.52%)had pancreatitis[5(9.80%)AP,seven(13.72%)chronic pancreatitis(CP)].PHPT with AP(PHPT-AP)was more common among males with the presentation at a younger age(35.20±16.11 vs 49.23±14.80 years,P=0.05)and lower plasma intact parathyroid hormone(iPTH)levels[125(80.55-178.65)vs 519.80(149-1649.55,P=0.01)]compared to PHPT without pancreatitis(PHPT-NP).The mean serum calcium levels were similar in both PHPT-AP and PHPT-NP groups[(11.66±1.15 mg/dL)vs(12.46±1.71 mg/dL),P=0.32].PHPT-AP also presented with more gastrointestinal symptoms like abdominal pain,nausea,and vomiting with lesser skeletal and renal manifestations as compared to patients with PHPT-NP.CONCLUSION AP can be the only presenting feature of PHPT.Normal or higher serum calcium levels during AP should always draw attention towards endocrine causes like PHPT.展开更多
BACKGROUND Parathyroid adenoma(PTA)is known as an adenomatous hyperparathyroidism syndrome.At earlier times,the major symptoms of this disease included high blood calcium and low phosphorus.PTA is a benign neuroendocr...BACKGROUND Parathyroid adenoma(PTA)is known as an adenomatous hyperparathyroidism syndrome.At earlier times,the major symptoms of this disease included high blood calcium and low phosphorus.PTA is a benign neuroendocrine neoplasm.We have reviewed the literature and found that it is rare for patients with hyperparathyroidism to have benign tumors with multiple organs at the same time.This report describes a patient with a PTA and four nonfunctional adenomas.CASE SUMMARY We report a case of primary hyperparathyroidism in a 39-year-old woman with multiple organ tumors.The patient was admitted to hospital because of hypercalcemia.Laboratory,imaging,and histological examinations confirmed a left parathyroid neoplasm.Right thyroid adenoma was discovered during hospitalization.She had a medical history of uterine fibroids,right benign mammary gland tumor,and meningioma.The patient recovered after surgical and conservative treatments.CONCLUSION Primary hyperparathyroidism with multiple organ tumors is uncommon,and further studies should be conducted to determine if there is genetic heterogeneity.展开更多
Background: 4D-CT has been used to localize the parathyroid adenomas and hyperplasia since 2006 as a second line study after TC-99 m MIBI and ultrasonography. However, multiple studies have shown that 4D-CT is a robus...Background: 4D-CT has been used to localize the parathyroid adenomas and hyperplasia since 2006 as a second line study after TC-99 m MIBI and ultrasonography. However, multiple studies have shown that 4D-CT is a robust imaging method with high diagnostic accuracy, becoming increasingly popular among surgeons and radiologists. Purpose: To assess the diagnostic performance of 4D-CT scans to identify the pathologic gland(s), using pathology and intraoperative findings as gold standards. Methods: We analyzed patients with primary and secondary hyperparathyroidism who had intraoperative reports, pathology, parathyroid hormone levels, and preoperative 4D-CT. Histology, surgical findings, and decreased parathyroid hormone levels were used as gold standards. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), accuracy and 95% confidence interval were calculated. Fleiss’ kappa was used to assess the inter-observer agreement. Results: Sixty-seven patients were included. Sixty-two patients had a single adenoma, and five patients had a multiple gland disease (adenomas or hyperplasia). A total of 72 glands were proven to have parathyroid adenomas or hyperplasia. The sensitivity, specificity, PPV, NPV and accuracy are 85%, 97%, 96%, 87% and 91% for lateralization and 76%, 96%, 85%, 92% and 90% for quadrant localization, respectively in single-gland disease. The sensitivity, specificity, PPV, NPV and accuracy are 88%, 100%, 100%, 50% and 90% for lateralization and 71%, 100%, 100%, 60% and 80% for quadrant localization respectively in multiple-gland disease. Fleiss’ kappa value is 5.6 (moderate inter-observer agreement). Conclusion: 4D-CT is a robust method in the localization of hyperfunctioning parathyroid glands with high accuracy and at least moderate inter-observer agreement.展开更多
Background: Long-term lithium use in psychiatric patients may lead to lithium associated hyperparathyroidism (LAH). Although anecdotal case reports have appeared, an evidence based algorithm for management of LAH is l...Background: Long-term lithium use in psychiatric patients may lead to lithium associated hyperparathyroidism (LAH). Although anecdotal case reports have appeared, an evidence based algorithm for management of LAH is lacking. Methods: A comprehensive literature search was performed (1973-2010) using PubMed with keywords;“lithium” “hypercalcemia” “hyperparathyroidism” “sestamibi” “intra-operative parathyroid hormone (IOPTH) monitoring” “parathyroidectomy” and “medical management”. All English language publications addressing etiology and clinical management issues concerning LAH were critically analyzed. Results: Lithium associated hyperparathyroidism occurs in 4.3% - 6.3% of chronic lithium users compared to the general population which has an incidence of 0.5% - 1%. 194 cases of LAH have been reported which includes 10 patients (5%) treated medically and 170 patients (88%) who underwent parathyroidectomy. No details were available for 14 patients (7%). Among parathyroidectomy patients, 104 (59%) had adenomatous disease and 66 (39%) had multiglandular hyperplasia. Preoperative localization studies were utilized in only 22 patients (13%) and IOPTH monitoring was reported in only 3 studies (32 patients, 19%). Among surgical patients, bilateral neck exploration (BNE) was the most common approach performed in 162 patients (95%);focused neck exploration was utilized in only 8 patients (5%). Parathyroidectomy normalized LAH biochemical changes in nearly all patients (90% - 97%) in the early post-operative period, but recurrent hyperparathyroidism occurred in 8% - 42% of patients. Conclusion: LAH is an under appreciated and poorly understood endocrine disorder. LAH has a higher incidence of multiglandular disease and bilateral neck exploration is mandatory in majority for disease control. Nonsurgical approaches may be useful in select patients on short-term lithium therapy.展开更多
Introduction: Primary hyperparathyroidism is a disease commonly caused by a single parathyroid adenoma in 80% - 85% of cases, and is less frequently caused by parathyroid hyperplasia. In approximately 2% of cases, the...Introduction: Primary hyperparathyroidism is a disease commonly caused by a single parathyroid adenoma in 80% - 85% of cases, and is less frequently caused by parathyroid hyperplasia. In approximately 2% of cases, the ectopic parathyroid adenoma is located within the mediastinum. Safely targeted parathyroidectomy is the gold standard procedure for surgical management of primary hyperparathyroidism. We reviewed our surgical experience using video-assisted thoracic surgery and a robotic technique for surgical resection of mediastinal parathyroid adenoma, caused by primary hyperparathyroidism. Materials and Methods: From July 2010 to September 2016, six consecutive patients with symptomatic primary hyperparathyroidism were evaluated with neck ultrasound computed tomography (CT), technetium-99 sestamibi scintigraphy, and selective venous sampling with a measurement of parathyroid hormone levels. Four patients underwent video-assisted thoracic parathyroidectomy and two patients had robotic-assisted parathyroidectomy. Results:? In six patients, there were four women and two men with a mean age of 47.5 years (ranging from 31 - 60 years). The mediastinal parathyroid adenomas were successfully localized by preoperative imaging studies in five patients. Only in one patient, we were unable to localize the parathyroid adenoma. All parathyroid adenomas were successfully resected without any complications. Conclusions: We found that minimally invasive mediastinal parathyroidectomy is promising, safe, and effective in a selected group of patients, as well as providing superior cosmetic results and a short hospital stay.展开更多
Background: Primary hyperparathyroidism (pHPT) is one of the most common endocrine diseases and the most common cause of hypercalcemia. Since routine laboratory testing, the prevalence of the disease has increased fro...Background: Primary hyperparathyroidism (pHPT) is one of the most common endocrine diseases and the most common cause of hypercalcemia. Since routine laboratory testing, the prevalence of the disease has increased from 0.1% to 0.4% worldwide. The only curative treatment is parathyroidectomy. Nowadays, preoperative localization studies have become standard before surgical treatment, and the first stage imaging methods are cervical ultrasonography (US) and/or Sestamibi scintigraphy. Objectives: To describe the accuracy of US and Sestamibi for detection of hyperfunctioning parathyroid adenomas preoperatively in patients with confirmed pHPT from our medical institution. Results: This is a retrospective study from a prospectively kept database that included thirty-one patients with the confirmed diagnosis of pHPT clinically and biochemically. The average age was 57.8 years old. Preoperative US and surgery findings were compared with a sensitivity of 51%. Preoperative Sestamibi and surgery findings were compared resulting in a sensitivity of 71%. Both imaging methods combined, resulted in a sensitivity of 80%. Conclusion: In patients with pHPT, Sestamibi is an effective method for localizing parathyroid pathology preoperatively, but the false negative rate can be high. US tends to have a wider range explained by the operator-dependent factor. The combination of US and Sestamibi reduces the rate of false negatives, as reported in international literature. It is important to mention that these studies cannot be used as a confirmatory test for this disease. It should only be used as an adjunct to help plan the operation.展开更多
文摘BACKGROUND With 4.9 to 35 instances per 100000 cases,hyperparathyroidism is one of the rarest causes of acute pancreatitis.The major cause of primary hyperparathyroidism is a parathyroid adenoma,which can manifest clinically in various ways.CASE SUMMARY We discuss the unusual case of a 13-year-old boy with recurrent pancreatitis as the initial presentation of primary hyperparathyroidism.The cause of his recurrent pancreatitis remained unknown,and the patient had multiple admissions with acute pancreatitis over 3 years.His diagnosis was delayed due to the initial normal levels of parathyroid hormone,which were later reported elevated in a subsequent episode where ultrasound neck and thyroid scintigraphy revealed a parathyroid adenoma as the underlying cause.After the diagnosis was made,he underwent surgical resection of the adenoma.CONCLUSION This case study stresses the importance of considering uncommon causes for recurrent pancreatitis.
文摘BACKGROUND Primary hyperparathyroidism is typically caused by a single parathyroid adenoma.Ectopic parathyroid adenomas occur as well,with cases involving various sites,including the mediastinum,presenting in varying frequencies.Secondary hyperparathyroidism develops in the context of chronic kidney disease,primarily due to vitamin D deficiency,hypocalcemia,and hyperphosphatemia.It is frequently diagnosed in patients undergoing dialysis.This article presents a rare case of hyperparathyroidism involving multiple hyperplastic parathyroid glands with pulmonary seeding in a 50-year-old female patient undergoing hemodialysis(HD).CASE SUMMARY The patient had a history of parathyroidectomy 10 years prior but developed recurrent hyperparathyroidism with symptoms of pruritus and cough with sputum during a period of routine dialysis.Radiographic imaging revealed multiple nodules in both lungs,with the largest measuring approximately 1.35 cm.Surgical histopathology confirmed the presence of hyperplastic parathyroid glands within the pulmonary tissue.After tumor resection surgery via videoassisted thoracic surgery with wedge resection,the patient was discharged in stable condition and in follow-up her symptoms showed improvement.CONCLUSION This article describes hyperparathyroidism presenting as pulmonary nodules in a patient undergoing postparathyroidectomy HD,highlighting diagnostic challenges and a positive outcome from tumor resection surgery.
文摘Primary hyperparathyroidism(pHPT)is the third most common endocrine disease.The surgical procedure aims for permanent cure,but recurrence has been reported in 4%-10%of pHPT patients.Preoperative localization imaging is highly valuable.It includes ultrasound,computed tomography(CT),single-photonemission CT,sestamibi scintigraphy and magnetic resonance imaging.The operation has been defined as successful when postoperative continuous eucalcemia exists for more than the first six months.Ongoing hypercalcemia during this period is defined as persistence,and recurrence is defined as hypercalcemia after six months of normocalcemia.Vitamin D is a crucial factor for a good outcome.Intraoperative parathyroid hormone(PTH)monitoring can safely predict the outcomes and should be suggested.PTH≤40 pg/mL or the traditional decrease≥50%from baseline minimizes the likelihood of persistence.Risk factors for persistence are hyperplasia and normal parathyroid tissue on histopathology.Risk factors for recurrence are cardiac history,obesity,endoscopic approach and low-volume center(at least 31 cases/year).Cases with double adenomas or four-gland hyperplasia have a greater likelihood of persistence/recurrence.A 6-mo calcium>9.7 mg/dL and eucalcemic parathyroid hormone elevation at 6 mo may be associated with recurrence necessitating long-term follow-up.18F-fluorocholine positron emission tomography and 4-dimensional CT in persistent and recurrent cases can be valuable before reoperation.With these novel advances in preoperative imaging and localization as well as intraoperative PTH measurement,the recurrence rate has dropped to 2.5%-5%.Sixmonth serum calcium≥9.8 mg/dL and parathyroid hormone≥80 pg/mL indicate a risk of recurrence.Negative sestamibi scintigraphy,diabetes and elevated osteocalcin levels are predictors of multiglandular disease,which brings an increased risk of persistence and recurrence.Bilateral neck exploration was considered the gold-standard diagnostic method.Minimally invasive parathyroidectomy and neck exploration are both effective surgical techniques.Multidisciplinary diagnostic and surgical management is required to prevent persistence and recurrence.Long-term follow-up,even up to 10 years,is necessary.
文摘We report the case of a female patient with severe acute necrotizing pancreatitis associated with hypercalcemia as first manifestation of primary hyperparathyroidism caused by a benign parathyroid adenoma.Initially the acute pancreatitis was treated conservatively.The patient subsequently underwent surgical resection of the parathyroid adenoma and surgical clearance of a large infected pancreatic pseudocyst.Although the association of parathyroid adenoma-induced hypercalcemia and acute pancreatitis is a known medical entity,it is very uncommon.The pathophysiology of hypercalcemia-induced acute pancreatitis is therefore not well known,although some mechanisms have been proposed.It is important to treat the provoking factor.Therefore,the cause of hypercalcemia should be identif ied early.Surgical resection of the parathyroid adenoma is the ultimate therapy.
文摘Skeletal derangements occur quite often in patient with primary hyperparathyroidism (PHPT). We investigated parathyroid and bone imagings in 59 cases of pathologically proven PHPT. Forty-nine cases were pathologically proven parathyroid adenomas; 8 presented hyperplasia and the other 2 were adenocarcinomas. Parathyroid imaging (early phase imaging, EPI) was conducted at 30 min after injecting 740～925MBq 99mTc-MIBI and 2～3h later (delayed phase imaging, DPI) separately. The following thyroid imagings were performed at the same posture 10 min after intravenous injection of 74～111MBq 99mTcO4-. The 99mTc- MIBI subtraction imaging data were obtained by subtracting thyroid imaging from that of DPI. Among 49 cases of proven hyperparathyroid adenoma 45 yielded positive imagings. Eight cases with hyperplasia gave negative results. The results were positive in 2 cases of parathyroid adenocarcinoma. Results of 99mTc-MDP/bone imaging: 35 cases of hyperparathyroid adenocarcinoma (disease duration 1-6 months) showed normal bone images, while 14 cases showed superscan images, course being 4-12 months. Bone imaging for 2 cases of adenocarcinoma showed multiple, radioactive aggregated foci (brown tumor imaging); course lasting 10-24 months. The results of bone imaging in 8 cases of hyperplasia/ hyperparathyroidism were normal. It was concluded that diagnostic accuracy for parathyroid was 79.6% and for parathyroid adenoma was 91.8%, and the technique has no diagnostic value for hyperplasia. The 99mTc-MDP / bone imaging results for PHPT can be classified into three categories, i.e. normal, superscan and brown tumor. The imaging results correlated well with the different categories and degrees of bone damage, the duration of clinical course and the pathological types. Therefore, it's important to use bone imaging data in association with therapy to reflect the stage and progress of PHPT.
文摘AIM To evaluate the parathyroid ultrasonography and define parameters that can predict poor response to treatment in patients with secondary hyperparathyroidism due to renal failure.METHODS This cohort study evaluated 85 patients with chronic kidney disease stage V with parathyroid hormone levels above 800 pg/mL. All patients underwent ultrasonography of the parathyroids and the following parameters were analyzed: Demographic characteristics(etiology of chronic kidney disease, gender, age, dialysis vintage, vascular access, use of vitamin D), laboratory(calcium, phosphorus, parathyroid hormone, alkaline phosphatase, bone alkaline phosphatase), and the occurrence of bone changes, cardiovascular events and death. The χ~2 test were used to compare proportions or the Fisher exact test for small sample frequencies. Student t-test was used to detect differences between the two groups regarding continuous variables.RESULTS Fifty-three patients(66.4%) had parathyroid nodules with higher levels of parathyroid hormone, calcium and phosphorus. Sixteen patients underwent parathyroidectomy and had higher levels of phosphorus and calcium × phosphorus product(P = 0.03 and P = 0.006, respectively). They also had lower mortality(32% vs 68%, P = 0.01) and lower incidence of cardiovascular or cerebrovascular events(27% vs 73%, P = 0.02). Calcium × phosphorus product above 55 mg^2/dL^2 [RR 1.48(1.06, 2.08), P = 0.03], presence of vascular calcification [1.33(1.01, 1.76), P = 0.015] and previous occurrence of vascular events [RR 2.25(1.27, 3.98), P < 0.001] were risk factors for mortality in this population. There was no association between the occurrence of nodules and mortality.CONCLUSION The identification of nodules at ultrasonography strengthens the indication for parathyroidectomy in patients with secondary hyperparathyroidism due to renal failure.
文摘BACKGROUND Acute pancreatitis(AP)presenting as an initial manifestation of primary hyperparathyroidism(PHPT)is uncommon,and its timely diagnosis is crucial in preventing recurrent attacks of pancreatitis.AIM To determine the clinical,biochemical,and radiological profile of PHPT patients presenting as AP.METHODS This is a retrospective observational study,51 consecutive patients admitted with the diagnosis of PHPT during January 2010 and October 2021 at a tertiary care hospital in Puducherry,India was included.The diagnosis of AP was established in the presence of at least two of the three following features:abdominal pain,levels of serum amylase or lipase greater than three times the normal,and characteristic features at abdominal imaging.RESULTS Out of the 51 consecutive patients with PHPT,twelve(23.52%)had pancreatitis[5(9.80%)AP,seven(13.72%)chronic pancreatitis(CP)].PHPT with AP(PHPT-AP)was more common among males with the presentation at a younger age(35.20±16.11 vs 49.23±14.80 years,P=0.05)and lower plasma intact parathyroid hormone(iPTH)levels[125(80.55-178.65)vs 519.80(149-1649.55,P=0.01)]compared to PHPT without pancreatitis(PHPT-NP).The mean serum calcium levels were similar in both PHPT-AP and PHPT-NP groups[(11.66±1.15 mg/dL)vs(12.46±1.71 mg/dL),P=0.32].PHPT-AP also presented with more gastrointestinal symptoms like abdominal pain,nausea,and vomiting with lesser skeletal and renal manifestations as compared to patients with PHPT-NP.CONCLUSION AP can be the only presenting feature of PHPT.Normal or higher serum calcium levels during AP should always draw attention towards endocrine causes like PHPT.
文摘BACKGROUND Parathyroid adenoma(PTA)is known as an adenomatous hyperparathyroidism syndrome.At earlier times,the major symptoms of this disease included high blood calcium and low phosphorus.PTA is a benign neuroendocrine neoplasm.We have reviewed the literature and found that it is rare for patients with hyperparathyroidism to have benign tumors with multiple organs at the same time.This report describes a patient with a PTA and four nonfunctional adenomas.CASE SUMMARY We report a case of primary hyperparathyroidism in a 39-year-old woman with multiple organ tumors.The patient was admitted to hospital because of hypercalcemia.Laboratory,imaging,and histological examinations confirmed a left parathyroid neoplasm.Right thyroid adenoma was discovered during hospitalization.She had a medical history of uterine fibroids,right benign mammary gland tumor,and meningioma.The patient recovered after surgical and conservative treatments.CONCLUSION Primary hyperparathyroidism with multiple organ tumors is uncommon,and further studies should be conducted to determine if there is genetic heterogeneity.
文摘Background: 4D-CT has been used to localize the parathyroid adenomas and hyperplasia since 2006 as a second line study after TC-99 m MIBI and ultrasonography. However, multiple studies have shown that 4D-CT is a robust imaging method with high diagnostic accuracy, becoming increasingly popular among surgeons and radiologists. Purpose: To assess the diagnostic performance of 4D-CT scans to identify the pathologic gland(s), using pathology and intraoperative findings as gold standards. Methods: We analyzed patients with primary and secondary hyperparathyroidism who had intraoperative reports, pathology, parathyroid hormone levels, and preoperative 4D-CT. Histology, surgical findings, and decreased parathyroid hormone levels were used as gold standards. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), accuracy and 95% confidence interval were calculated. Fleiss’ kappa was used to assess the inter-observer agreement. Results: Sixty-seven patients were included. Sixty-two patients had a single adenoma, and five patients had a multiple gland disease (adenomas or hyperplasia). A total of 72 glands were proven to have parathyroid adenomas or hyperplasia. The sensitivity, specificity, PPV, NPV and accuracy are 85%, 97%, 96%, 87% and 91% for lateralization and 76%, 96%, 85%, 92% and 90% for quadrant localization, respectively in single-gland disease. The sensitivity, specificity, PPV, NPV and accuracy are 88%, 100%, 100%, 50% and 90% for lateralization and 71%, 100%, 100%, 60% and 80% for quadrant localization respectively in multiple-gland disease. Fleiss’ kappa value is 5.6 (moderate inter-observer agreement). Conclusion: 4D-CT is a robust method in the localization of hyperfunctioning parathyroid glands with high accuracy and at least moderate inter-observer agreement.
文摘Background: Long-term lithium use in psychiatric patients may lead to lithium associated hyperparathyroidism (LAH). Although anecdotal case reports have appeared, an evidence based algorithm for management of LAH is lacking. Methods: A comprehensive literature search was performed (1973-2010) using PubMed with keywords;“lithium” “hypercalcemia” “hyperparathyroidism” “sestamibi” “intra-operative parathyroid hormone (IOPTH) monitoring” “parathyroidectomy” and “medical management”. All English language publications addressing etiology and clinical management issues concerning LAH were critically analyzed. Results: Lithium associated hyperparathyroidism occurs in 4.3% - 6.3% of chronic lithium users compared to the general population which has an incidence of 0.5% - 1%. 194 cases of LAH have been reported which includes 10 patients (5%) treated medically and 170 patients (88%) who underwent parathyroidectomy. No details were available for 14 patients (7%). Among parathyroidectomy patients, 104 (59%) had adenomatous disease and 66 (39%) had multiglandular hyperplasia. Preoperative localization studies were utilized in only 22 patients (13%) and IOPTH monitoring was reported in only 3 studies (32 patients, 19%). Among surgical patients, bilateral neck exploration (BNE) was the most common approach performed in 162 patients (95%);focused neck exploration was utilized in only 8 patients (5%). Parathyroidectomy normalized LAH biochemical changes in nearly all patients (90% - 97%) in the early post-operative period, but recurrent hyperparathyroidism occurred in 8% - 42% of patients. Conclusion: LAH is an under appreciated and poorly understood endocrine disorder. LAH has a higher incidence of multiglandular disease and bilateral neck exploration is mandatory in majority for disease control. Nonsurgical approaches may be useful in select patients on short-term lithium therapy.
文摘Introduction: Primary hyperparathyroidism is a disease commonly caused by a single parathyroid adenoma in 80% - 85% of cases, and is less frequently caused by parathyroid hyperplasia. In approximately 2% of cases, the ectopic parathyroid adenoma is located within the mediastinum. Safely targeted parathyroidectomy is the gold standard procedure for surgical management of primary hyperparathyroidism. We reviewed our surgical experience using video-assisted thoracic surgery and a robotic technique for surgical resection of mediastinal parathyroid adenoma, caused by primary hyperparathyroidism. Materials and Methods: From July 2010 to September 2016, six consecutive patients with symptomatic primary hyperparathyroidism were evaluated with neck ultrasound computed tomography (CT), technetium-99 sestamibi scintigraphy, and selective venous sampling with a measurement of parathyroid hormone levels. Four patients underwent video-assisted thoracic parathyroidectomy and two patients had robotic-assisted parathyroidectomy. Results:? In six patients, there were four women and two men with a mean age of 47.5 years (ranging from 31 - 60 years). The mediastinal parathyroid adenomas were successfully localized by preoperative imaging studies in five patients. Only in one patient, we were unable to localize the parathyroid adenoma. All parathyroid adenomas were successfully resected without any complications. Conclusions: We found that minimally invasive mediastinal parathyroidectomy is promising, safe, and effective in a selected group of patients, as well as providing superior cosmetic results and a short hospital stay.
文摘Background: Primary hyperparathyroidism (pHPT) is one of the most common endocrine diseases and the most common cause of hypercalcemia. Since routine laboratory testing, the prevalence of the disease has increased from 0.1% to 0.4% worldwide. The only curative treatment is parathyroidectomy. Nowadays, preoperative localization studies have become standard before surgical treatment, and the first stage imaging methods are cervical ultrasonography (US) and/or Sestamibi scintigraphy. Objectives: To describe the accuracy of US and Sestamibi for detection of hyperfunctioning parathyroid adenomas preoperatively in patients with confirmed pHPT from our medical institution. Results: This is a retrospective study from a prospectively kept database that included thirty-one patients with the confirmed diagnosis of pHPT clinically and biochemically. The average age was 57.8 years old. Preoperative US and surgery findings were compared with a sensitivity of 51%. Preoperative Sestamibi and surgery findings were compared resulting in a sensitivity of 71%. Both imaging methods combined, resulted in a sensitivity of 80%. Conclusion: In patients with pHPT, Sestamibi is an effective method for localizing parathyroid pathology preoperatively, but the false negative rate can be high. US tends to have a wider range explained by the operator-dependent factor. The combination of US and Sestamibi reduces the rate of false negatives, as reported in international literature. It is important to mention that these studies cannot be used as a confirmatory test for this disease. It should only be used as an adjunct to help plan the operation.
