Urology Case Reports (Nov 2022)

A case of bladder perivascular epithelioid cell tumors

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

Journal volume & issue
Vol. 45
p. 102168

Abstract

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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.

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