眼眶内炎性病变的CT分析

CT analysis of inflammatory disease in orbit

目的:提高对眼眶内炎性病变CT表现的认识。方法:29例眼眶内炎性病变均行眼眶CT扫描,比较分析炎性病变的CT影像表现。结果:炎性假瘤22例,肿块游离缘锐利,其中9例累及泪腺,7例绕眼球生长,2例表现为眶尖部视神经及眼外肌增粗,4例主要表现为眼肌弥漫性增粗;肉芽肿性炎症4例,在眶内呈铸形生长;慢性泪囊炎1例表现为内眦部泪囊区囊性肿块;慢性泪囊周围炎1例表现为内眦部泪囊区中央可见液性密度的小肿物;蜂窝织炎1例表现为右侧眶内眼球外侧密度增高,边缘模糊不清。结论:眼眶内炎性病变CT表现有一定特征性可做出初步诊断。

Objective：To improve the cognition to the CI＇ represents of inflammatory disease in orbit. Methods：All the 29 cases of inflammatory disease in orbit had been scanned by CT at orbit. The CT represents were studied and compared carefully.Results：22 cases of inflammatory pseudotumor, and all the dissociated edges being sharp, including 9 cases involving tear gland, 7 cases surrounding the eyeball, 2 cases showing the optic nerve and extraocular muscles thicken, and 4 cases showing several extraocular muscles diffuse thicken. 4 cases were granulomatous inflammation filling up the orbit with soft tissue. One case was the chronic inflammation of the lacrimal sac showing a cystoid lump in the area of the lacrimal sac. One case was the chronic inflammation around the lacrimal sac showing a small lump with a low denstiy in its center in the area of the lacrimal sac. One case was orbital cellulitis showing the density of the right part in the orbit outside the eyeball becoming higher, and having not a edge. Conclusion： According to the position, edges and growth pattern of the disease, a primary conclusion can be drawn.