[Retroperitoneal Malignant Lymphoma: A Case Report].

A male patient in his 70s was referred to our hospital with the chief complaint of anorexia. Abdominal computed tomography (CT) showed a 20 cm large homogeneous mass in the retroperitoneum, and contrast-enhanced CT revealed uniform staining throughout the inside of the mass. Soluble interleukin-2 receptor and lactate dehydrogenase tumor markers were elevated.

Laparoscopic nephrectomy in a patient with severe scoliosis: A case report.

Although the role of laparoscopic nephrectomy (LN) has been established, few studies have reported cases of LN in individuals with scoliosis. Here we report a case of right LN in a patient with severe right convex scoliosis. A 26-year-old man presented with a fever.

Concurrence of villous adenoma and non-muscle invasive bladder cancer arising in the bladder: a case report and review of the literature.

Background: Villous adenoma arising in the urinary tract is rare tumor. Most cases have been identified as benign neoplasm in the colon. Villous adenoma of the gastrointestinal tract is thought arise from premalignant polyps.

[Inverted papilloma of the ureter with non-functional kidney: a case report].

Inverted papilloma of the ureter is a rare lesion. We report a case of ureteral inverted papilloma with a non-functional kidney. A 66-year-old male was admitted to our hospital for investigation of left hydronephrosis.

[A case of CEA-producing renal pelvic and ureteral cancer].

We report a case of carcinoembryonic antigen (CEA)-producing renal pelvic and ureteral cancer. A 62-year-old man consulted a local hospital with the chief complaint of right flank pain. On ultrasonography and CT scan, right hydronephrosis with the renal pelvis and ureteral tumor were detected, and he was referred to our hospital.