A case of bladder perivascular epithelioid cell tumors

Kazuki Kokura; Jun Watanabe; Shiori Murata; Yuichi Uemura; Masayuki Uegaki; Toshiaki Shirahase

doi:10.1016/j.eucr.2022.102168

A case of bladder perivascular epithelioid cell tumors

Urol Case Rep. 2022 Jul 19:45:102168. doi: 10.1016/j.eucr.2022.102168. eCollection 2022 Nov.

Authors

Kazuki Kokura¹, Jun Watanabe¹, Shiori Murata¹, Yuichi Uemura¹, Masayuki Uegaki¹, Toshiaki Shirahase¹

Affiliation

¹ Toyooka Hospital, 1094 Tobera, Toyooka City, Hyogo Prefecture, Japan.

Abstract

Perivascular epithelioid cell tumor (PEComa) was introduced in the WHO classification of bone and soft tissue tumors in 2002, and Bladder PEComa is very rare. A 60-year-old man underwent TURBT after CT and cystoscopy revealed a 2.5 cm tumor with a concave center on the posterior wall of the bladder. Pathological examination revealed a perivascular epithelioid cell tumor, which was diagnosed as primary bladder PEComa after systemic examination. We report a case of partial bladder resection for bladder PEComa, a type of mesenchymal tumor that does not originate from the bladder mucosa.

Keywords: Bladder PEComa; CT, Computed tomography; HE, Hematoxylin and eosin; PEComa; PEComa, Perivascular epithelioid cell tumors; TURBT, transurethral resection of bladder tumor.

Publication types

Case Reports