a rare case of vasculitis anca of bladder and urethra providing to vesicovaginal fistula and early recurrence of illness

Introduction: vasculitis of the bladder and urethra is a rare disease. its presentation, as a pelvis tumor, indicates the cancerous nature of the lesion. an incorrect diagnosis can result in the removal of the bladder. case presentation: we described a 56-year-old woman (born in 1964) with a vesicovaginal fistula, which arose from vasculitis anca. establishing the correct diagnosis was a long and complicated process. during diagnosis, a urogenital fistula was created due to the deepening of inflammatory necrotic lesions. remission was achieved by pharmacological treatment. as a result, fistula surgical treatment became possible. an unexpected relapse of vasculitis was diagnosed based on the bladder emptying symptoms. repeating the treatment resulted in a complete response. eventually, we obtained a cure of regional vasculitis while maintaining the bladder and urethra, which translated into an increased quality of life for the patient. conclusions: correct diagnosis before surgery is of crucial importance. combined pharmacology and surgery prevents removal of the bladder. careful observation of symptoms allowed for the early detection of recurrent vasculitis.