Retroperitoneal Doege-Potter syndrome with intraoperative blood glucose monitoring.

Background: Doege-Potter syndrome, characterized by solitary fibrous tumors and non-islet cell tumor hypoglycemia, is rare. Here, we report a case of Doege-Potter syndrome in which retroperitoneal tumor resection was performed with continuous intraoperative blood glucose monitoring.

Case Presentation: A 37-year-old man presented with hypoglycemia-related symptoms, and a 10 × 12 × 9 cm tumor was found in his right kidney.

Use of metallic and polymeric ureteral stents in malignant ureteral obstruction.

Background: Malignant ureteral obstruction (MUO) is often caused by advanced intra-abdominal cancers. Effective management must be attempted, but the treatment policy is unclear. Metallic ureteral stents are one of the latest options in managing MUO.

Case of acute respiratory distress syndrome in a patient with an extragonadal germ cell tumor without lung metastasis in which choriocarcinoma syndrome was suspected.

Introduction: Choriocarcinoma syndrome is caused by bleeding from metastatic germ cell tumors with choriocarcinoma components. Here, we report a case of acute respiratory distress syndrome, which arose after first-line chemotherapy for an extragonadal germ cell tumor without lung metastasis.

Case Presentation: A 41-year-old male visited our institution with chief complaints of back pain and weight loss.

Functional paraganglioma of the bladder: Both radiographic-negative and laboratory-negative case.

Introduction: Paraganglioma has been determined to be an extra-adrenal pheochromocytoma. Paraganglioma of the bladder is a rare entity, accounting for 0.06% of all bladder tumors.

Clear cell adenocarcinoma of the prostatic urethra: A case report.

Introduction: Clear cell adenocarcinoma of the prostatic urethra in men is an extremely rare disease, with only eight case reports published.

Case Presentation: A 56-year-old man visited our hospital for gross hematuria. Urinary cytology detected class V, cystoscopy showed no abnormal findings, and contrast-enhanced computed tomography also showed no abnormal findings in his upper urinary tract except for a low-enhancement lesion on his left prostate lobe.