TY - EJOU AU - Arnold, Peter J. AU - Spio, Mabel AU - Youssef, Reem AU - Dehner, Carina AU - Rice, Kevin TI - Perivascular epithelioid cell neoplasm of the bladder with peritoneal metastasis T2 - Canadian Journal of Urology PY - 2025 VL - 32 IS - 1 SN - 1488-5581 AB - Perivascular epithelioid cell tumors (PEComas) are a diverse group of mesenchymal neoplasms. While they have been described throughout the genitourinary system, PEComas are quite rare within the bladder. We present the case of a 37-year-old male who presented in clot retention and was found to have a bladder PEComa. Staging images seemingly demonstrated solid tumor confinement to the bladder and pelvis. Intraoperative pathology revealed peritoneal metastasis. The patient underwent a pelvic mass excision and partial cystectomy. The patient had plans for adjuvant chemotherapy, but later returned to the hospital and passed away from acute hypoxic respiratory failure. KW - perivascular epithelioid cell neoplasms; urinary bladder; neoplasm metastasis DO - 10.32604/cju.2025.064694