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Evaluation of pineal cysts with magnetic resonance imaging 被引量:1
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作者 Erkan Gokce Murat Beyhan 《World Journal of Radiology》 2018年第7期65-77,共13页
AIM To evaluate radiological imaging findings of patients who had been found to have pineal cyst(PC) in brain magnetic resonance imaging(MRI).METHODS A total of 9546 patients who had brain MRI examination in March 201... AIM To evaluate radiological imaging findings of patients who had been found to have pineal cyst(PC) in brain magnetic resonance imaging(MRI).METHODS A total of 9546 patients who had brain MRI examination in March 2010-January 2018 period were studied.Fiftysix patients(44 female and 12 male) found to have PC were evaluated.Eighteen of the patients had had follow-up examinations of 2-94 mo(mean 30.50 ± 28.83).PC dimensions and volume,radiological imaging features(signal intensities,contours,internal septationloculation and contrast-enhancement features) and natural history in cases who had been followed-up were evaluated by two radiologists.RESULTS Of 9546 patients,5555 were female(58.2%) and 3991 male(41.8%).Age range was 1-99(mean 43.18 ± 20.94).PC frequency was calculated to be 0.58%.Forty-four of the 56 patients(78.57%) with PC were female and 12 male(21.43%),and their age range was 5-61(mean 31.26 ± 12.73).Thirty-five of the PCs were typical(62.50%) and 21(37.50%) were atypical.No significant difference was found between initial and final imaging sizes of PCs which were monitored by follow-up examinations(P > 0.05).CONCLUSION PCs are cysts which do not show clear size and natural changes and are more frequently observed in females and in adult ages.Most of them are isointense with cerebrospinal fluid on T1 and T2 A weighted images,hyperintense compared to cerebrospinal fluid on fluidattenuated inversion recovery; sequence and smoothly contoured.Their typical forms have peripheral rim and multilocular ones may have septal contrast-enhancement. 展开更多
关键词 magnetic resonance imaging Pineal cyst Pineal region
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Retrorectal tumors in adults:Magnetic resonance imaging findings 被引量:8
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作者 Bo-Lin Yang,Yun-Fei Gu,Wan-Jin Shao,Hong-Jin Chen,Gui-Dong Sun,Department of Coloproctology,The Affiliated Hospital of Nanjing University of Chinese Medicine,Nanjing 210029,China Hei-Ying Jin,Department of Coloproctology,The 3rd Affiliated Hospital of Nanjing University of Chinese Medicine,Nanjing 210029,China Xin Zhu,Department of Radiology,The Affiliated Hospital of Nanjing University of Chinese Medicine,Nanjing 210029,China 《World Journal of Gastroenterology》 SCIE CAS CSCD 2010年第46期5822-5829,共8页
AIM:To retrospectively evaluate the magnetic resonance imaging (MRI) features of adult retrorectal tumors and compare with histopathologic findings.METHODS:MRI features of 21 patients with preoperative suspicion of re... AIM:To retrospectively evaluate the magnetic resonance imaging (MRI) features of adult retrorectal tumors and compare with histopathologic findings.METHODS:MRI features of 21 patients with preoperative suspicion of retrorectal tumors were analyzed based on the histopathological and clinical data.RESULTS:Fourteen benign cystic lesions appeared hypointense on T1-weighted images,and hyperintense on T2-weighted images with regular peripheral rim.Epidermoid or dermoid cysts were unilocular,and tailgut cysts were multilocular.Presence of intracystic intermediate signal intensity was observed in one case of tailgut cyst with a component of adenocarcinoma.Six solid tumors were malignant lesions and showed heterogeneous intensity on MRI.Mucinous adenocarcinomas showed high signal intensity on T2-weighted and mesh-like enhancing areas on fat-suppressed T2-weighted images.There was a fistula between the mass and anus with an internal opening in mucinous adenocarcinomas arising from anal fistula.Gastrointestinal stromal tumors displayed low signal intensity on T1-weighted images,and intermediate to high signal intensity on T2-weighted images.Central necrosis could be seen as a high signal on T2-weighted images.CONCLUSION:MRI is a helpful technique to define the extent of the retrorectal tumor and its relationship to the surrounding structures,and also to demonstrate possible complications so as to choose the best surgical approach. 展开更多
关键词 Retrorectal TUMOR Presacral lesions magnetic resonance imaging CONGENITAL cyst MALIGNANT TUMOR Diagnosis
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Duodenal duplication cyst causing severe pancreatitis:Imaging findings and pathological correlation 被引量:6
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作者 Alessandro Guarise Niccolo' Faccioli +3 位作者 Mauro Ferrari Luigi Romano Alice Parisi Massimo Falconi 《World Journal of Gastroenterology》 SCIE CAS CSCD 2006年第10期1630-1633,共4页
We here report a case of a 18-year-old man with a history of recurrent abdominal pain and a previous episode of severe acute pancreatitis. Abdominal ultrasonography, contrast enhanced multislice computer tomography, e... We here report a case of a 18-year-old man with a history of recurrent abdominal pain and a previous episode of severe acute pancreatitis. Abdominal ultrasonography, contrast enhanced multislice computer tomography, endoscopic retrograde cholangiopancreatography, endoscopic ultrasonography and magnetic resonance imaging demonstrated a cystic mass lesion. Only on delayed phase magnetic resonance images after GadoliniumBOPTA injection, it was possible to demonstrate the lesion's relationship with the biliary tree, differentiating the lesion from intraluminal duodenal diverticulum, and to achieve the diagnosis of duodenal duplication cyst, a recognized rare cause of acute pancreatitis. The diagnosis was confirmed by histology. 展开更多
关键词 PANCREATITIS Congenital anomalies Duodenal duplication cyst ULTRASONOGRAPHY Computed Tomography CHOLANGIOPANCREATOGRAPHY magnetic resonance imaging
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Imaging features of ciliated hepatic foregut cyst 被引量:2
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作者 Song-Hua Fang Dan-Jun Dong Shi-Zheng Zhang 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第27期4287-4289,共3页
Ciliated hepatic foregut cyst (CHFC) is a very rare cystic lesion of the liver that is histologically similar to bronchogenic cyst. We report one case of CHFC that was hard to distinguish from solid-cystic neoplasm in... Ciliated hepatic foregut cyst (CHFC) is a very rare cystic lesion of the liver that is histologically similar to bronchogenic cyst. We report one case of CHFC that was hard to distinguish from solid-cystic neoplasm in imaging features. Magnetic resonance imaging was helpful in differentiating these cysts from other lesions. 展开更多
关键词 Ciliated foregut cyst Uver magnetic resonance imaging X-ray computed tomography
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Microstructural analysis of pineal volume using trueFISP imaging 被引量:2
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作者 Jan M Bumb Marc A Brockmann +1 位作者 Christoph Groden Ingo Nolteb 《World Journal of Radiology》 CAS 2013年第4期166-172,共7页
AIM:To determine the spectrum of pineal microstructures (solid/cystic parts) in a large clinical population using a high-resolution 3D-T2-weighted sequence. METHODS:A total of 347 patients enrolled for cranial magneti... AIM:To determine the spectrum of pineal microstructures (solid/cystic parts) in a large clinical population using a high-resolution 3D-T2-weighted sequence. METHODS:A total of 347 patients enrolled for cranial magnetic resonance imaging were randomly included in this study. Written informed consent was obtained from all patients. The exclusion criteria were artifacts or mass lesions prohibiting evaluation of the pineal gland in any of the sequences. True-FISP-3D-imaging (1.5-T, isotropic voxel 0.9 mm) was performed in 347 adults (55.4 ± 18.1 years). Pineal gland volume (PGV), cystic volume, and parenchyma volume (cysts exclud- ed) were measured manually. RESULTS:Overall, 40.3% of pineal glands were cystic. The median PGV was 54.6 mm 3 (78.33 ± 89.0 mm 3 ), the median cystic volume was 5.4 mm 3 (15.8 ± 37.2mm 3 ), and the median parenchyma volume was 53.6 mm 3 (71.9 ± 66.7 mm 3 ). In cystic glands, the standard deviation of the PGV was substantially higher than in solid glands (98% vs 58% of the mean). PGV declined with age (r = -0.130, P = 0.016). CONCLUSION:The high interindividual volume variation is mainly related to cysts. Pineal parenchyma volume decreased slightly with age, whereas genderrelated effects appear to be negligible. 展开更多
关键词 PINEAL GLAND VOLUME PINEAL cyst magnetic resonance imaging Etiology Reference range
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Management of Rathke’s Cleft Cysts: About Three Observations
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作者 Bouali Sofiene Badri Mohamed +4 位作者 Boubaker Adnene Ben Said Imed Bouhoula Asma Zemmel Ihsen Jemel Hafedh 《Open Journal of Modern Neurosurgery》 2014年第4期169-172,共4页
Rathke cleft cysts are benign sellar lesions that are generally asymptomatic. Rathke cleft cyst can enlarge and become symptomatic. Surgical therapy is the mainstay of treatment for symptomatic RCC. The optimal surgic... Rathke cleft cysts are benign sellar lesions that are generally asymptomatic. Rathke cleft cyst can enlarge and become symptomatic. Surgical therapy is the mainstay of treatment for symptomatic RCC. The optimal surgical strategy remains debatable. We report our experience with this lesion and we discuss the advantages and disadvantages of each technique through a literature review. 展开更多
关键词 Rathke CLEFT cyst TRANSSPHENOIDAL Surgery magnetic resonance imaging
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Management of a Huge Ovarian Cyst in Pregnancy at the Douala General Hospital, Cameroon: A Case Report and Review of the Literature
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作者 Fidelia Mbi Kobenge Felix-Adolphe Elong +1 位作者 Emenguele Pascale Mpono Thomas Obinchemti Egbe 《Advances in Reproductive Sciences》 CAS 2024年第3期165-178,共14页
Background: Ovarian cysts in pregnancy are common and are usually small benign functional cysts (corpus luteum and theca-lutein cysts) that usually resolve spontaneously between 14 and 16 weeks of gestation. However, ... Background: Ovarian cysts in pregnancy are common and are usually small benign functional cysts (corpus luteum and theca-lutein cysts) that usually resolve spontaneously between 14 and 16 weeks of gestation. However, large ovarian cysts are rare in pregnancy, with an incidence of 0.2% - 2%, and most of them are benign. The first-line diagnostic modality is ultrasonography. Complications of ovarian cysts in pregnancy include miscarriage, ovarian torsion, cyst rupture, etc. Laparotomy is the treatment modality commonly used in our setting, and histopathologic diagnosis is important for the prognosis of the treatment. Case Presentation: MC is a 32-year-old G3P2002 married housewife of the Bakweri tribe who was referred to our department because of progressive abdominal discomfort and shortness of breath for 1 month’s duration. Her medical history is consistent with two normal vaginal deliveries at term and the use of implants (for contraception) until one month prior to the index pregnancy. Her booking visit was at 16 weeks gestation at a primary (missionary) healthcare facility, and she underwent ultrasonography and was diagnosed with a singleton viable intrauterine pregnancy and a simple septate cystic mass measuring 17 cm situated on top of the uterus, appearing to originate from the left ovary. She was referred to seek the expertise of an obstetrician-gynecologist, but she came to our department at 35 weeks gestation and underwent cesarean birth at 37 weeks gestation. In the pathological review, serous cystadenoma was diagnosed, and there were no positive findings in peritoneal cytology. Conclusion: The ultrasonographic diagnosis of the huge ovarian cyst in the index case was after 16 weeks gestation because of her late booking visit at 16 weeks gestation. The index case deferred referral to the obstetrician because of a lack of finances, came to our department at 35 weeks gestation because of abdominal pain that may have resulted from a torsion of the ovarian cyst, and underwent cesarean birth because of malpresentation and fear of cyst rupture during labor. We recommend cesarean section in such cases because of suboptimal antenatal care uptake and histopathology of the specimen to exclude malignancy. . 展开更多
关键词 Ovarian cyst ULTRASONOGRAPHY magnetic resonance imaging HISTOPATHOLOGY PREGNANCY Cesarean Section
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Cystic lesions of peripheral nerves:Are we missing the diagnosis of the intraneural ganglion cyst? 被引量:5
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作者 Jyoti Panwar Anil Mathew Binu P Thomas 《World Journal of Radiology》 CAS 2017年第5期230-244,共15页
AIM To highlight the salient magnetic resonance imaging(MRI) features of the intraneural ganglion cyst(INGC) of various peripheral nerves for their precise diagnosis and to differentiate them from other intra and extr... AIM To highlight the salient magnetic resonance imaging(MRI) features of the intraneural ganglion cyst(INGC) of various peripheral nerves for their precise diagnosis and to differentiate them from other intra and extraneural cystic lesions.METHODS A retrospective analysis of the magnetic resonance(MR) images of a cohort of 245 patients presenting with nerve palsy involving different peripheral nerves was done.MR images were analyzed for the presence of a nerve lesion,and if found,it was further characterized as solid or cystic.The serial axial,coronal and sagittal MR images of the lesions diagnosed as INGC were studied for their pattern and the anatomical extent along the course of the affected nerve and its branches.Its relation to identifiable anatomical landmarks,intraarticular communication and presence of denervation changes in the muscles supplied by involved nerve was also studied.RESULTS A total of 45 cystic lesions in the intra or extraneurallocations of the nerves were identified from the 245 MR scans done for patients presenting with nerve palsy.Out of these 45 cystic lesions,13 were diagnosed to have INGC of a peripheral nerve on MRI.The other cystic lesions included extraneural ganglion cyst,paralabral cyst impinging upon the suprascapular nerve,cystic schwannoma and nerve abscesses related to Hansen's disease involving various peripheral nerves.Thirteen lesions of INGC were identified in 12 patients.Seven of these affected the common peroneal nerve with one patient having a bilateral involvement.Two lesions each were noted in the tibial and suprascapular nerves,and one each in the obturator and proximal sciatic nerve.An intra-articular connection along the articular branch was demonstrated in 12 out of 13 lesions.Varying stages of denervation atrophy of the supplied muscles of the affected nerves were seen in 7 cases.Out of these 13 lesions in 12 patients,6 underwent surgery.CONCLUSION INGC is an important cause of reversible mono-neuropathy if diagnosed early and surgically treated.Its classic MRI pattern differentiates it from other lesions of the peripheral nerve and aid in its therapeutic planning.In each case,the joint connection has to be identified preoperatively,and the same should be excised during surgery to prevent further cyst recurrence. 展开更多
关键词 Intra-neural magnetic resonance imaging Peripheral nerves Extra-neural Ganglion cyst
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Clinical and radiological feature of lymphoepithelial cyst of the pancreas 被引量:4
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作者 Hirofumi Terakawa Isamu Makino +8 位作者 Hisatoshi Nakagawara Tomoharu Miyashita Hidehiro Tajima Hirohisa Kitagawa Takashi Fujimura Dai Inoue Kazuto Kozaka Toshifumi Gabata Tetsuo Ohta 《World Journal of Gastroenterology》 SCIE CAS 2014年第45期17247-17253,共7页
A lymphoepithelial cyst(LEC)of the pancreas is a rare benign lesion.Because patients with LEC of the pancreas have a good prognosis,it is important that these lesions are accurately differentiated from other more aggr... A lymphoepithelial cyst(LEC)of the pancreas is a rare benign lesion.Because patients with LEC of the pancreas have a good prognosis,it is important that these lesions are accurately differentiated from other more aggressive pancreatic neoplasms for an appropriate treatment strategy.Previous studies have reported that a definitive diagnosis of LEC often cannot be obtained based solely on the findings of preoperative imaging(e.g.,Computed tomography or Magnetic resonance imaging).In this study,we reviewed four cases of pancreatic LECs to investigate the feature of LECs.We reviewed these cases with regard to symptoms,imaging findings,surgical procedures,and other clinical factors.We found that LEC was associated with unique characteristics on imaging findings.A preoperative diagnosisof LEC may be possible by comprehensively evaluating its clinical and imaging findings. 展开更多
关键词 Lymphoepithelial cyst Preoperative diagno-sis magnetic resonance imaging
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Gastric duplication cyst mimicking large cystic lymphangioma in an adult: A rare case report and review of the literature 被引量:1
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作者 Fang-Yi Xv Alex Sun +1 位作者 Yi Gan Hong-Jie Hu 《World Journal of Clinical Cases》 SCIE 2019年第15期2087-2093,共7页
BACKGROUND Gastric duplication cysts(GDCs)are a relatively uncommon congenital developmental abnormality,mainly occurring in infants but very rarely in adults.Because of the variability in clinical presentation,it is ... BACKGROUND Gastric duplication cysts(GDCs)are a relatively uncommon congenital developmental abnormality,mainly occurring in infants but very rarely in adults.Because of the variability in clinical presentation,it is often quite challenging to diagnose GDCs in adults.We are presenting a case report of an adult diagnosed operatively as having a GDC with a literature review to summarize clinical and imaging features and the treatment selections of GDCs in adults so that doctors could have a comprehensive understanding of this disease and make a precise diagnosis and a suitable therapeutic decision for patients.CASE SUMMARY A 51-year-old man presented with recurrent epigastric pain and fullness for two years.No significant findings were noted during physical examination and routine blood tests were unremarkable.An abdominal ultrasound revealed a large cyst in the upper left abdominal quadrant.A following contrast-enhanced abdominal computed tomography(CT)scan demonstrated a hypodense cystic lesion between the spleen and stomach.The lesion had scattered calcification in the cyst wall without any significant enhancement.The lesion was initially thought to be a cystic lymphangioma.The patient underwent a surgical resection and intraoperatively it was noted that the lesion was closely adherent to the greater curvature of the stomach.Subsequently,a resection of the gastric mass along with a partial gastrectomy was performed.The patient recovered quickly with a complete symptomatic relief and did not show any further complications during the 8-month follow-up.CONCLUSION GDCs are quite rare in adults,with a multitude of symptoms,which is quite challenging for precise diagnosis before histological examination.Some imaging techniques involving CT,magnetic resonance imaging,and endoscopic ultrasound could provide valuable morphological features for differential diagnosis. 展开更多
关键词 GASTROINTESTINAL ABNORMALITY GASTRIC DUPLICATION cyst COMPUTED tomography Ultrasound magnetic resonance imaging Case report
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Retrorectal mucinous adenocarcinoma arising from a tailgut cyst:A case report and review of literature 被引量:2
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作者 Yan-Shuai Wang Qing-Yun Guo +7 位作者 Fang-Hong Zheng Zi-Wei Huang Jia-Lang Yan Fu-Xiang Fan Tian Liu Shun-Xian Ji Xiao-Feng Zhao Yi-Xiong Zheng 《World Journal of Gastrointestinal Surgery》 SCIE 2022年第9期1072-1081,共10页
BACKGROUND Tailgut cysts are defined as congenital cysts that develop in the rectosacral space from the residue of the primitive tail.As a congenital disease,caudal cysts are very rare,and their canceration is even ra... BACKGROUND Tailgut cysts are defined as congenital cysts that develop in the rectosacral space from the residue of the primitive tail.As a congenital disease,caudal cysts are very rare,and their canceration is even rarer,which makes the disease prone to misdiagnosis and delayed treatment.We describe a case of caudal cyst with adenocarcinogenesis and summarize in detail the characteristics of cases with analytical value reported since 1990.CASE SUMMARY A 35-year-old woman found a mass in her lower abdomen 2 mo ago.She was asymptomatic at that time and was not treated because of the coronavirus disease 2019 pandemic.Two weeks ago,the patient developed abdominal distension and right waist discomfort and came to our hospital.Except for the high level of serum carcinoembryonic antigen,the medical history and laboratory tests were not remarkable.Magnetic resonance imaging showed a well-defined,slightly lobulated cystic-solid mass with a straight diameter of approximately 10 cm×9 cm in the presacral space,slightly high signal intensity on T2-weighted imaging,and moderate signal intensity on T1-weighted imaging.The mass was completely removed by laparoscopic surgery.Histopathological examination showed that the lesion was an intestinal mucinous adenocarcinoma,and the multidisciplinary team decided to implement postoperative chemotherapy.The patient recovered well,the tumor marker levels returned to normal,and tumor-free survival has been achieved thus far.CONCLUSION The case and literature summary can help clinicians and researchers develop appropriate examination and therapeutic methods for diagnosis and treatment of this rare disease. 展开更多
关键词 Tailgut cysts ADENOCARCINOMA magnetic resonance imaging Retrorectal disease Preoperative biopsy Case report
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Asymptomatic traumatic rupture of an intracranial dermoid cyst:A case report
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作者 Mei-Hua Zhang Qi Feng +3 位作者 Han-Lin Zhu Heng Lu Zhong-Xiang Ding Bo Feng 《World Journal of Clinical Cases》 SCIE 2021年第16期4046-4051,共6页
BACKGROUND Previous studies reported that most of the intracranial dermoid cyst ruptures were spontaneous,and only a few were traumatic,with asymptomatic much rarer than the symptomatic ruptures.Hence,how to deal with... BACKGROUND Previous studies reported that most of the intracranial dermoid cyst ruptures were spontaneous,and only a few were traumatic,with asymptomatic much rarer than the symptomatic ruptures.Hence,how to deal with the asymptomatic traumatic rupture of intracranial dermoid cyst remains a challenge in the clinic.CASE SUMMARY A 59-year-old man was accidentally diagnosed with intracranial dermoid cyst through a cranial computed tomography(CT)scan due to a car accident.A mixed-density lesion with fat and a calcified margin was observed in the midline of the posterior fossa,accompanied with lipid droplet drifts in brain sulci,fissures,cisterns,and ventricles.After 1 wk of conservative observation,no change was observed on the updated cranial CT scan.After 2 wk of conservative observation,magnetic resonance imaging examination confirmed that the lesion was a traumatic rupture of a posterior fossa dermoid cyst with lipid droplet drifts.As the patient exhibited no adverse symptoms throughout the 2 wk,a 6-mo follow-up visit was arranged for him instead of aggressive treatment.Nonetheless,the patient did not show any abnormal neurological symptoms in the 6 mo of follow-up visits.CONCLUSION Asymptomatic traumatic rupture of intracranial dermoid cyst could be just followed or treated conservatively rather than treated aggressively. 展开更多
关键词 Intracranial dermoid cyst magnetic resonance imaging Computed tomography RUPTURE TRAUMATIC Case report
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Cystic teratoma of the parotid gland:A case report
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作者 Hong-Sheng Liu Qiao-Ying Zhang +3 位作者 Jia-Feng Duan Gang Li Jia Zhang Peng-Feng Sun 《World Journal of Clinical Cases》 SCIE 2022年第8期2622-2628,共7页
BACKGROUND Teratoma is a common tumor,but rarely occurs in the parotid region.Only nine cases have been reported in the current literature.Although it is generally detected in infancy or childhood,it is commonly asymp... BACKGROUND Teratoma is a common tumor,but rarely occurs in the parotid region.Only nine cases have been reported in the current literature.Although it is generally detected in infancy or childhood,it is commonly asymptomatic.Computed tomography(CT)and magnetic resonance imaging(MRI)have important roles in the diagnosis of teratoma.CASE SUMMARY A 36-year-old man developed a lump located below the left auricular lobule 3 years ago.Physical examination revealed a nearly-circular tumor in the left parotid gland region with a defined border,firm texture,and significant movement.Calcification,fat,keratinized substances,and typical fat-liquid levels was observed on CT and MRI.A diagnosis of cystic teratoma of the parotid gland was established preoperatively and confirmed by postoperative pathology.Following surgery,the patient developed temporary facial paralysis.There was no recurrence of teratoma during the 15-mo follow-up period.CONCLUSION When an asymptomatic mass in the parotid region is identified,parotid gland teratoma should be included in the differential diagnosis.Imaging examinations are helpful in the diagnosis. 展开更多
关键词 TERATOMA Parotid gland cyst Literature review Computed tomography magnetic resonance imaging Case report
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Ciliated hepatic foregut cyst with high intra-cystic carbohydrate antigen 19-9 level
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作者 Ziv Ben Ari Oranit Cohen-Ezra +9 位作者 Jonathan Weidenfeld Tania Bradichevsky Ella Weitzman Uri Rimon Yael Inbar Michal Amitai Barak Bar-Zachai Roni Eshkenazy Arie Ariche Daniel Azoulay 《World Journal of Gastroenterology》 SCIE CAS 2014年第43期16355-16358,共4页
A ciliated hepatic foregut cyst (CHFC) is a rare foregut developmental malformation usually diagnosed in adulthood. Five percent of reported cases of CHFC transform into squamous cell carcinoma. We report the presenta... A ciliated hepatic foregut cyst (CHFC) is a rare foregut developmental malformation usually diagnosed in adulthood. Five percent of reported cases of CHFC transform into squamous cell carcinoma. We report the presentation, evaluation, and surgical management of a symptomatic 45-year-old male found to have a 6.2 cm CHFC. Contrast tomography-guided fine-needle aspiration demonstrated columnar, ciliated epithelium consistent with the histologic diagnosis of CHFC. The intracystic levels of carbohydrate antigen (CA) 19-9 and carcinoembryonic antigen (CEA) were extremely high (978118 U/mL and 973 &#x003bc;g/L, respectively). Histologically, the wall of the cyst showed characteristic pseudopapillae lined with a ciliated stratified columnar epithelium, underlying smooth muscle, an outer fibrous layer and no atypia. Immunohistochemistry for CA19-9 and CEA was positive. This is the first case report of a CHFC in which levels of CA 19-9 and CEA were measured. Our findings suggest that a large sized multilocular cyst and elevated cyst CA19-9 and CEA levels do not exclude a CHFC from consideration in the diagnosis. CHFCs should be included in the differential diagnosis of hepatic lesions. Accurate diagnosis of a CHFC is necessary given its potential for malignant transformation, and surgical excision is recommended. 展开更多
关键词 Ciliated hepatic foregut cyst Carbohydrate antigen 19-9 Carcinoembryonic antigen Computed tomography-guided fine-needle aspiration magnetic resonance imaging Squamous cell carcinoma
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A huge brain cyst in left temporal fossa
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作者 Muhammad Faisal Khilji Abdullah Al-Reesi 《中国现代神经疾病杂志》 CAS 2013年第10期909-911,共3页
男性患者,27岁。主因头痛、恶心、呕吐入院。患者幼时即左侧颞叶突起。MRI检查显示左侧颞窝囊性病变,约为6.00 cm×7.00 cm×8.00 cm大小。临床诊断为表皮样囊肿,予手术切除。表皮样囊肿生长缓慢,由富含胆固醇的表皮样细胞碎片... 男性患者,27岁。主因头痛、恶心、呕吐入院。患者幼时即左侧颞叶突起。MRI检查显示左侧颞窝囊性病变,约为6.00 cm×7.00 cm×8.00 cm大小。临床诊断为表皮样囊肿,予手术切除。表皮样囊肿生长缓慢,由富含胆固醇的表皮样细胞碎片组成,发生后应施行预防性切除。 展开更多
关键词 表皮囊肿 体层摄影术 X线计算机 磁共振成像 中枢神经系统囊肿 病例报告
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后下纵隔支气管囊肿CT和MRI不典型表现临床案例分析
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作者 王伟 陈疆红 +1 位作者 杨正汉 靳二虎 《CT理论与应用研究(中英文)》 2024年第1期76-82,共7页
纵隔型支气管囊肿(MBC)是一种先天性支气管囊肿,多发生于中纵隔中上部,发生在后下纵隔相对少见。本文报道1例后下纵隔支气管囊肿患者,19岁,男性,体检发现纵隔占位。CT表现为后下纵隔脊柱旁不规则肿块,密度混杂,边缘及内部可见结节状钙化... 纵隔型支气管囊肿(MBC)是一种先天性支气管囊肿,多发生于中纵隔中上部,发生在后下纵隔相对少见。本文报道1例后下纵隔支气管囊肿患者,19岁,男性,体检发现纵隔占位。CT表现为后下纵隔脊柱旁不规则肿块,密度混杂,边缘及内部可见结节状钙化,增强后未见强化。MRI检查T1WI呈不均匀低信号,T2WI呈高信号,内见条索状、分隔样低信号,增强后延迟期病灶边缘及分隔轻度强化。术后病理诊断:支气管源性囊肿。本文回顾性分析该病例的CT和MRI影像特征,并复习国内外文献,总结后下纵隔不典型支气管囊肿的影像表现,以提高对该疾病的认识。 展开更多
关键词 体层摄影术 X线计算机 磁共振成像 后下纵隔 支气管囊肿
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基于CT及MRI特征的Logistic回归模型鉴别多房样肝囊肿与肝黏液性囊性肿瘤的价值
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作者 刘洪杰 李永元 +5 位作者 郑嘉铭 魏凯 叶露 李艳博 崔建民 孙浩然 《国际医学放射学杂志》 2024年第6期669-674,共6页
目的 基于多房样肝囊肿及肝黏液性囊性肿瘤(MCN)的CT及MRI特征建立Logistic回归模型,并分析其对两者鉴别诊断的价值。方法 回顾性分析65例多房样肝囊性病变的CT及MRI资料,其中男13例、女52例。根据手术病理结果将其分为肝囊肿病变(39例... 目的 基于多房样肝囊肿及肝黏液性囊性肿瘤(MCN)的CT及MRI特征建立Logistic回归模型,并分析其对两者鉴别诊断的价值。方法 回顾性分析65例多房样肝囊性病变的CT及MRI资料,其中男13例、女52例。根据手术病理结果将其分为肝囊肿病变(39例)与肝MCN病变(26例)。采用卡方检验比较2组影像特征,对组间差异有统计学意义的CT及MRI征象进行多因素分析,建立二元Logistic回归模型。采用受试者操作特征(ROC)曲线评估模型预测效能,并计算其曲线下面积(AUC)、敏感度、特异度及准确度。结果 肝囊肿及肝MCN间的囊性病变数量、囊壁及分隔外观、囊壁或分隔结节样凸起、实性部分厚度>10 mm、分隔类型、分隔位置、分隔与囊壁的关系,其差异均具有统计学意义(均P<0.05)。多因素Logistic回归分析显示,分隔类型、分隔与囊壁的关系是肝囊肿及肝MCN的独立预测因素(P<0.05),采用这2个因素构建二元Logistic回归模型,该回归模型的诊断效能(AUC=0.871)比单独使用分隔类型、分隔与囊壁的关系的要高(AUC分别为0.699、0.795)。结论 基于分隔类型、分隔与囊壁的关系联合构建的Logistic回归模型能够较好地鉴别多房样肝囊肿及肝MCN,有助于提高肝囊肿及肝MCN术前影像诊断水平。 展开更多
关键词 肝囊肿 黏液性囊性肿瘤 体层摄影术 X线计算机 磁共振成像
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胎儿蛛网膜囊肿磁共振随访研究
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作者 马慧 林剑军 +2 位作者 戴李华 莫亚宁 梁玄菁 《医学影像学杂志》 2024年第2期79-82,共4页
目的 探讨胎儿蛛网膜囊肿随胎龄及年龄增长而发生的形态改变及预后评估。方法 选取磁共振诊断蛛网膜囊肿18例胎儿的MRI资料及其相应产后随诊资料,通过随访对比蛛网膜囊肿部位、大小变化及周围组织关系等方面数据进行总结。结果 位于幕... 目的 探讨胎儿蛛网膜囊肿随胎龄及年龄增长而发生的形态改变及预后评估。方法 选取磁共振诊断蛛网膜囊肿18例胎儿的MRI资料及其相应产后随诊资料,通过随访对比蛛网膜囊肿部位、大小变化及周围组织关系等方面数据进行总结。结果 位于幕下蛛网膜囊肿10例,其中右侧小脑延髓池1例,四叠体池右侧1例,右侧小脑半球后方2例,小脑蚓下方偏左1例,后颅窝中线处5例。位于幕上8例,其中中间帆腔区域1例,小脑幕右上方1例,左右侧颞极各3例。18例胎儿中15例随访至生后;另3例胎儿期随访2次,产后未遵嘱随访。蛛网膜囊肿逐渐增大11例,其中后颅窝中线处仅1例增大。生后进行性脑积水4例,3例发生于偏中线处,1例位于中间帆腔区域。结论 胎儿蛛网膜囊肿因部位不同,其结局具有一定差异。部分蛛网膜囊肿有随胎龄及年龄增大趋势,偏中线处蛛网膜囊肿更容易进行性增大,胎儿期其增长速度及对邻近脑组织的受压、脑室梗阻变化相对产后变化要慢。 展开更多
关键词 磁共振成像 胎儿 蛛网膜囊肿 随诊
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胎儿期Ⅰ型先天性胆总管囊肿的MRI影像特征和肝胆发育的参数测量
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作者 谷磊磊 高铎 +2 位作者 韩学芳 耿左军 周立霞 《磁共振成像》 CAS CSCD 北大核心 2024年第8期139-144,178,共7页
目的观察胎儿期Ⅰ型先天性胆总管囊肿(congenital choledochal cyst,CCC)的MRI表现,分析CCC胎儿肺肝比值、肝脏、脾脏、胆囊以及门静脉测量参数与正常胎儿的差异。材料与方法随访分析31例出生后经手术证实的CCC患儿的临床资料以及胎儿期... 目的观察胎儿期Ⅰ型先天性胆总管囊肿(congenital choledochal cyst,CCC)的MRI表现,分析CCC胎儿肺肝比值、肝脏、脾脏、胆囊以及门静脉测量参数与正常胎儿的差异。材料与方法随访分析31例出生后经手术证实的CCC患儿的临床资料以及胎儿期的MRI表现,观察CCC病灶的形态、走行方向、是否与胆管或胆囊相连、病灶下缘与肝脏下缘的关系,并测量计算胆总管囊肿的体积。以90例健康胎儿为对照组,比较两组胎儿肺肝比值、肝脏(左右径、上下径、最大截面面积、肝实质表观弥散系数)、脾脏(长径、厚度、最大截面面积)、胆囊(长径、短径、长径与短径比值、最大截面面积)以及门静脉直径的差异。并分析CCC胎儿胆总管囊肿体积与MRI测量指标的相关性。结果31例CCC患儿中,男9例,女22例,男女比率约为1∶2.4;其中26例胆总管囊肿病灶为椭圆形,5例为类圆形;31例病灶上端均可见尖角征;29例胆总管囊肿病灶的下缘未及肝脏下缘,2例病灶下缘超过了肝脏下缘;26例病灶的走行方向为右上-左下。CCC组与对照组胎儿的肺肝比值、肝脏(左右径、上下径、最大截面面积、表观弥散系数)、脾脏(长径、厚度)、胆囊(长径、短径、最大截面面积)的差异没有统计学意义(P>0.05);CCC组与对照组胎儿脾脏的最大截面面积、门静脉直径以及胆囊长径与短径的比值差异有统计学意义(P<0.05);进一步统计分析CCC组胆总管囊肿体积与胎儿脾脏最大截面面积、胆囊长径与短径比值以及门静脉直径的相关性,结果表明病灶体积与胎儿脾脏的最大截面面积、胆囊长径与短径的比值以及门静脉直径没有相关性(P>0.05)。结论CCC多见于女性,胎儿期的MRI表现为:病灶多呈椭圆形,一般不超过肝脏下缘,病灶的走行方向多为右上-左下,病变上端可见尖角征。患儿脾脏增大,门静脉增宽,胆囊长径与短径的比值增大。但病灶体积与胎儿脾脏的最大截面面积、门静脉直径、胆囊长径与短径的比值无相关性。 展开更多
关键词 肝脏 胆囊 门静脉 产前诊断 先天性胆总管囊肿 磁共振成像
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比较3.0T与5.0T MR胆胰管造影图像质量
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作者 殷亮 李章柱 +4 位作者 商明艳 李宗昌 唐博文 于丹 甘洁 《中国医学影像技术》 CSCD 北大核心 2024年第5期690-693,共4页
目的比较3.0T与5.0T MR胆胰管造影(MRCP)图像质量。方法前瞻性纳入18例胆管扩张患者(胆管扩张组)和7名健康志愿者(健康组),采用3.0T和5.0T MR仪行MRCP,比较二者显示胆管树细节能力、信噪比(SNR)及图像伪影。结果胆管扩张组中,5.0T MRCP... 目的比较3.0T与5.0T MR胆胰管造影(MRCP)图像质量。方法前瞻性纳入18例胆管扩张患者(胆管扩张组)和7名健康志愿者(健康组),采用3.0T和5.0T MR仪行MRCP,比较二者显示胆管树细节能力、信噪比(SNR)及图像伪影。结果胆管扩张组中,5.0T MRCP所示胆管树分支数目、分支总长度及最大分支长度均大于3.0T MRCP(P均<0.05);健康组中,5.0T MRCP所示胆管树分支数目及分支总长度均大于3.0T MRCP(P均<0.05)。2组5.0T MRCP的SNR均大于3.0T MRCP,但差异无统计学意义(P均>0.05)。3.0T与5.0T MRCP图像伪影差异无统计学意义(P=0.054)。结论5.0T MRCP所示胆管树解剖细节较3.0T MRCP更佳,而其SNR及图像伪影与后者相当。 展开更多
关键词 胆总管囊肿 场强 胆管造影 磁共振成像 前瞻性研究
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