title: A simple renal cyst invaded by infiltrating urothelial carcinoma mimicking a Bosniak Class IV renal cyst.
abstract: We report a 79-year-old woman with a left side simple renal cyst invaded by infiltrating urothelial carcinoma mimicking a Bosniak Class IV renal cyst. Computerized tomography has high accuracy for the diagnosis of renal cysts and urothelail carcinoma. But, in this case it was still difficult to distinguish a simple renal cyst with infiltrating urothelial carcinoma invasion from a Bosniak Class IV renal cyst on CT scan. The management of a Bosniak Class IV renal cyst and urothelail carcinoma is totally different. Therefore, we performed a left side nephroureterectomy. This patient will have regular follow-up with cystoscopy every 3 months for the first 2 y, every 6 months for the next 2 y, and then annually thereafter.
authors: Division of Uro-oncology, Department of Surgery, Chang Gung University, Taoyuan, Taiwan.
authors: J-M
authors: JM
authors: Liu
authors: C-K
authors: CK
authors: Chuang
authors: Y-H
authors: YH
authors: Chang
authors: K-F
authors: KF
authors: Ng
authors: L-J
authors: LJ
authors: Wang
authors: K-L
authors: KL
authors: Chuang
authors: H-C
authors: HC
authors: Chuang
authors: S-T
authors: ST
authors: Pang
mesh_terms: D000368:Aged; D002295:Carcinoma, Transitional Cell / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D052177:Kidney Diseases, Cystic / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D009361:Neoplasm Invasiveness; D009392:Nephrectomy / Q000379:methods; D011859:Radiography