後腹膜腫瘍の2例

TWO CASES OF PRIMARY RETROPERITONEAL TUMORS

はじめに

　最近，後腹膜の良性神経鞘腫と良性リンパ管嚢腫を経験したので若干の文献的考察を加えて報告する。

Case 1 was a 28 year-old man with a chief complaint of abdominal mass. The tumor shadow of a hen egg-size at the left of the 4 th lumbar. Spine was shown by a retroperitoneal pneumography and resection of the tumor which measured 4×2 cm was performed. Microscopically, the tumor was characterized by benign neurilemmoma. Case 2 was a 32 year old woman with chief complaints of dull pain on her lower abdomen, fever and abodominal mass. Five cystic tumors which measured from 15.7×6.7 cm to 3.0×2.2 cm were located sitting on inferior vena cava and were removed. The microscopic appearance showed benign cystic lymphangioma.