REPORT OF A CASE OF FUSED PELVIC CAKE KIDNEY

Abstract

“Fused pelvic kidney” is considered to be a very rare anomaly. Recently we had an opportunity to examine a fused pelvic cake kidney.
A Japanese female clerk aged 33 was admitted to the Department of Surgery, Toyama Civil Hospital with the complaint of intermittent lower abdominal pain of one year's duration. The surgeons diagnosed the case as the abdominal tumor, performed a laparotomy, and found out the fused renal mass with two separate and distinct ureters in the pelvic cavity.
After the operation, we made urological examinations such as intravenous pyelography, retrograde pyelography, tomography combined pneumoretroperitoneum, aortography and renal scintiscan, which revealed a typical fused pelvic cake kidney slightly located to the right side.
There have been many opinions concerning the forms and locations of renal anomalies. For example Tofukuji stated that there was much confusion between the “fused pelvic kidney” and the socalled “crossed renal ectopia with fusion”.
As far as we can collect in the foreign literature, there are less than twenty reported cases. In Japan, there are only four cases including ours.