BACKGROUND Organ-associated pseudosarcomatous myofibroblastic proliferation (PMP) is a very rare disorder.In the urogenital tract,PMP preferentially involves the urinary bladder;kidney involvement is rare.Here,we repo...BACKGROUND Organ-associated pseudosarcomatous myofibroblastic proliferation (PMP) is a very rare disorder.In the urogenital tract,PMP preferentially involves the urinary bladder;kidney involvement is rare.Here,we report a rare case of PMP with ossification in the lower pole of the kidney,which mimics urothelial carcinoma or an osteogenic tumor.CASE SUMMARY A Chinese man was admitted to our hospital due to intermittent hematuria for more than 1 mo.Enhanced renal computed tomography revealed a mass in the left renal pelvis and upper ureter.The preoperative clinical diagnosis was renal pelvic carcinoma,determined by imaging examination and biopsy.After a standard preparation for surgery,the patient underwent retroperitoneoscopic radical nephroureterectomy.The operative findings were an extensive renal tumor (6 cm × 4.5 cm × 4.5 cm) invading the lower pole of the kidney and upper ureter.The final pathological diagnosis was organ-associated PMP with ossification.After 6-mo follow-up,no recurrence or metastasis was found.CONCLUSION This case of PMP was unusual for its mimicking renal pelvic carcinoma in imaging examinations,making biopsy necessary.展开更多
Embryologically, chromaffin cells of the pheo-chromocytoma and ganglion cells of the ganglioneuroma are both derived from neural crest cells. Composite pheochromocytoma-ganglioneuroma (Pheo-GN) in a single adrenal gla...Embryologically, chromaffin cells of the pheo-chromocytoma and ganglion cells of the ganglioneuroma are both derived from neural crest cells. Composite pheochromocytoma-ganglioneuroma (Pheo-GN) in a single adrenal gland is very rare. A case report of a patient with composite Pheo-GN of the adrenal gland and renal pelvic cancer is presented. Laparoscopic left adrenalectomy, nephroureterectomy and para-aortic lymphadenectomy were performed. This represents the first report of simultaneous surgical treatment for composite Pheo-GN and renal pelvic cancer.展开更多
Wth the increased use of laparoscopic surgery in he treatment of urological cancer, there is rising concern regarding the development of recurrent disease at laparoscopic port sites. However, there is a paucity of pub...Wth the increased use of laparoscopic surgery in he treatment of urological cancer, there is rising concern regarding the development of recurrent disease at laparoscopic port sites. However, there is a paucity of published data addressing port-site metastasis （PSM） following laparoscopic surgery for urological malignancy. Here, we reported a case of isolated PSM that occurred 21 months after laparoscopic nephroureterectomy.展开更多
A 91-year-old female presented with a pulsatile abdominal mass. Her past medical history included hypertension and hyperlipidemia. A 6.9 cm infrarenal abdominal aortic aneurysm, with a left ectopic pelvic kidney and t...A 91-year-old female presented with a pulsatile abdominal mass. Her past medical history included hypertension and hyperlipidemia. A 6.9 cm infrarenal abdominal aortic aneurysm, with a left ectopic pelvic kidney and two aberrant renal arteries, one each from the left and right common iliac arteries was found on computed tomography. Because of the high risk of rupture, surgery was recommended and an endovascular aneurysm repair was performed. The antegrade flow of the aberrant renal artery from the left common iliac artery was preserved. The right aberrant renal artery was covered with stent graft. The patient’s serum creatinine level remained unchanged throughout the postoperative course, with an uneventful postoperative recovery.展开更多
BACKGROUND Immunoglobulin(Ig)G4-related disease(Ig G4-RD)is an autoimmune disease associated with chronic and progressive inflammation and fibrosis.It is difficult to differentiate Ig G4-RD involving the kidney from i...BACKGROUND Immunoglobulin(Ig)G4-related disease(Ig G4-RD)is an autoimmune disease associated with chronic and progressive inflammation and fibrosis.It is difficult to differentiate Ig G4-RD involving the kidney from infectious diseases and malignancy on imaging.CASE SUMMARY We report the case of a 51-year-old Chinese man whose abdominal computed tomography scan showed diffuse bilateral enlargement of the kidneys and perirenal fat,thickening of the renal pelvic walls,and hydronephrosis of the right kidney.Relevant laboratory test results showed a serum creatinine level of 464μmol/L.The patient was diagnosed with acute renal failure and was started on intermittent hemodialysis.Further tests revealed high serum Ig G4 levels(20.8 g/L)and an enlarged right submaxillary lymph node.Biopsy and histopathological examination of the enlarged node led to the diagnosis of Ig G4-RD.After corticosteroid therapy,his serum creatinine level quickly decreased to near normal levels.CONCLUSION Ig G4-RD affecting the renal pelvis or perirenal fat is rare,with atypical imaging features.Multidisciplinary consultation is critical for accurate diagnosis and treatment of this disease.Suspected cases should undergo biopsy to avoid misdiagnosis.展开更多
基金Supported by the National Natural Science Foundation of China,No.81570685
文摘BACKGROUND Organ-associated pseudosarcomatous myofibroblastic proliferation (PMP) is a very rare disorder.In the urogenital tract,PMP preferentially involves the urinary bladder;kidney involvement is rare.Here,we report a rare case of PMP with ossification in the lower pole of the kidney,which mimics urothelial carcinoma or an osteogenic tumor.CASE SUMMARY A Chinese man was admitted to our hospital due to intermittent hematuria for more than 1 mo.Enhanced renal computed tomography revealed a mass in the left renal pelvis and upper ureter.The preoperative clinical diagnosis was renal pelvic carcinoma,determined by imaging examination and biopsy.After a standard preparation for surgery,the patient underwent retroperitoneoscopic radical nephroureterectomy.The operative findings were an extensive renal tumor (6 cm × 4.5 cm × 4.5 cm) invading the lower pole of the kidney and upper ureter.The final pathological diagnosis was organ-associated PMP with ossification.After 6-mo follow-up,no recurrence or metastasis was found.CONCLUSION This case of PMP was unusual for its mimicking renal pelvic carcinoma in imaging examinations,making biopsy necessary.
文摘Embryologically, chromaffin cells of the pheo-chromocytoma and ganglion cells of the ganglioneuroma are both derived from neural crest cells. Composite pheochromocytoma-ganglioneuroma (Pheo-GN) in a single adrenal gland is very rare. A case report of a patient with composite Pheo-GN of the adrenal gland and renal pelvic cancer is presented. Laparoscopic left adrenalectomy, nephroureterectomy and para-aortic lymphadenectomy were performed. This represents the first report of simultaneous surgical treatment for composite Pheo-GN and renal pelvic cancer.
文摘Wth the increased use of laparoscopic surgery in he treatment of urological cancer, there is rising concern regarding the development of recurrent disease at laparoscopic port sites. However, there is a paucity of published data addressing port-site metastasis （PSM） following laparoscopic surgery for urological malignancy. Here, we reported a case of isolated PSM that occurred 21 months after laparoscopic nephroureterectomy.
文摘A 91-year-old female presented with a pulsatile abdominal mass. Her past medical history included hypertension and hyperlipidemia. A 6.9 cm infrarenal abdominal aortic aneurysm, with a left ectopic pelvic kidney and two aberrant renal arteries, one each from the left and right common iliac arteries was found on computed tomography. Because of the high risk of rupture, surgery was recommended and an endovascular aneurysm repair was performed. The antegrade flow of the aberrant renal artery from the left common iliac artery was preserved. The right aberrant renal artery was covered with stent graft. The patient’s serum creatinine level remained unchanged throughout the postoperative course, with an uneventful postoperative recovery.
基金Supported by the National Natural Science Foundation of ChinaNo. 8177140433
文摘BACKGROUND Immunoglobulin(Ig)G4-related disease(Ig G4-RD)is an autoimmune disease associated with chronic and progressive inflammation and fibrosis.It is difficult to differentiate Ig G4-RD involving the kidney from infectious diseases and malignancy on imaging.CASE SUMMARY We report the case of a 51-year-old Chinese man whose abdominal computed tomography scan showed diffuse bilateral enlargement of the kidneys and perirenal fat,thickening of the renal pelvic walls,and hydronephrosis of the right kidney.Relevant laboratory test results showed a serum creatinine level of 464μmol/L.The patient was diagnosed with acute renal failure and was started on intermittent hemodialysis.Further tests revealed high serum Ig G4 levels(20.8 g/L)and an enlarged right submaxillary lymph node.Biopsy and histopathological examination of the enlarged node led to the diagnosis of Ig G4-RD.After corticosteroid therapy,his serum creatinine level quickly decreased to near normal levels.CONCLUSION Ig G4-RD affecting the renal pelvis or perirenal fat is rare,with atypical imaging features.Multidisciplinary consultation is critical for accurate diagnosis and treatment of this disease.Suspected cases should undergo biopsy to avoid misdiagnosis.
