後腹膜線維化症の診断におけるCTscanの意義

Abstract

特発性後腹膜線維化症の4例のレ線学的診断法を中心に検討した.1) CTにて4例中3例は椎体前方に特徴的な軟組織陰影が認められ, 術前診断が可能であった.非典型的部位にみられた1例は腫瘍との鑑別が困難であった.2) 4例のfollow up中, 2例にCT上後腹膜線維化症の陰影の自然消失が確認された.3) CT上は悪性腫瘍との鑑別がとくに重要である.4)後腹膜線維化症の診断・follow upにはCT scanがきわめて有用である

We report 4 patients with surgically proved idiopathic retroperitoneal fibrosis. Retroperitoneal fibrosis was diagnosed correctly in 3 of the patients by computerized tomography. On the computerized tomogram, retroperitoneal fibrosis demonstrated a characteristic soft tissue mass enveloping the vessels and ureters. In 2 patients, the follow-up computerized tomogram revealed spontaneous resolution of the mass in the retroperitoneal space. Computerized tomography is one of the most useful methods in the preoperative evaluation and postoperative follow-up of this disease.