A case report of congenital, giant hydroureter.:A Case Report of Congenital, Giant Hydroureter

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A 14-year-old girl was admitted to our hospital with complaints of general malaise and lower abdominal distension. Physical examination revealed a large (8×10cm), tense elastic mass occupying the pelvic cavity and lower abdomen. Peripheral blood analysis, serum biochemistry and tumor-marker data showed no abnormalities, but intravenous pyelogram demonstrated a left non-visualizing kidney. Ultrasonography of the tumor showed a large cystic mass without solid portions, which replaced the uterus anteriorly and to the right. The tumor was suspected to be an ovarian cyst. Exploratory laparotomy revealed the bilateral ovaries to be normal, and there was a retroperitoneal mass continuous with the bladder and the left contracted kidney, which was diagnosed as a left giant hydroureter. The left ureter was removed with left-nephrectomy.Our case of giant hydroureter was considered to be due to congenital stenosis of vesico ureteral junction, and was classified as mechanically obstructive megaloureter. Although congenial, giant hydroureter is a rare disease, it is a clinically important entity in the differential diagnosis of lower abdominal tumor occurring in young women.
近畿産科婦人科学会の論文