外傷を契機として発見された水腎症の4例

OCCULT HYDRONEPHROSIS (FOUR CASES) FOLLOWING BLUNT ABDOMINAL TRAUMA

Ⅰ．緒言

　各種の先天性，後天性病変を有する腎が，正常腎に比して外傷を受け易いことはよく知られている。一方腎部外傷を契機として尿路の症状が表面に出て泌尿器科的検査をうけることにより，これまで看過されていた既存腎病変が始めて発見されることも案外に少なくない。以下我々が最近経験した外傷を契機として発見された水腎症の4例を報告する。

Four cases of congenital hydronephrosis, which were discovered by the opportunity of urological examination after a rathers light trauma of the kidney region, were reported. Two cases were adults (24 year old male, 46 year old female) and two were pediatric cases (8 year old and 12 year old males).

The causes of hydronephrosis were considered as obstruction at the ureteropelvic junction in three cases and in one case the obstruction was at the ureterovesical junction. Uretero-neocystostomy by the "nipple method" was done in one case but nephrectomy was done on the 3 cases with nonfunctioning kidney.