A round cell sarcoma of the bladder following radiotherapy: A case Report.

Sarcomas are uncommon and extremely aggressive malignancies. Sarcomas of the bladder are exceedingly rare. We report the case of 67-year-old female patient having had 20 years ago a total hysterectomy with bilateral adnexectomy followed by adjuvant external radiotherapy to an undifferentiated uterine sarcoma, was presented with hematuria. An abdomino-pelvic Computed Tomography (CT) Scan was done showing a 5 cm budding lesion of the bladder floor. An anterior pelvectomy with external urinary diversion was undergone. The histological examination showed a high grade urothelial carcinoma infiltrating the muscle with a sarcomatoid component.