Endometriosisによる尿管通過障害の1例

This is a case of endometriosis which caused left ureteral stricture, A 34-year-old house wife had been complaining of dull lower abdominal quadrant pain several days before menstruation, Physical examinations revealed no abnormalities except a mass in the pelvic pouch, Retrograde pyelography by catheterization of the left ureter demonstrated a high degree of stricture at the distal fifth of the ureter, hydroureter and hydronephrosis, At operation, the stenotic portion of the left ureter and abnormal peri-ureteral tissue were removed and a complete hysterectomy was performed, Histological examinations of the removed tissue revealed small islands of endometrium in the peri-ureteral fibrous tissue, but no islands in the mucosa, the muscular layer and the serosa, This is the third case of extrinsic endometriosis of the ureter in the Japanese literatures so far.