CT、MRI在眼眶炎性假瘤的诊断价值

目的:探讨CT和MRI对眼眶炎性假瘤的诊断和鉴别诊断价值。方法:回顾性分析经临床、病理证实的63例眼眶炎性假瘤的影像学表现。结果:根据病变累及部位及形态学表现分为:①隔前型2例,表现为眼睑肿胀;②巩膜周围炎型1例,表现为眼球壁增厚;③视神经束膜炎型3例,表现为视神经增粗;④弥漫型10例,病变可同时累及眶隔前组织、眼肌、视神经、眼环、泪腺、眶内脂肪或眶周组织;⑤肿块型12例,表现为边界清楚的肿块;⑥泪腺炎型9例,表现为泪腺肿大;⑦肌炎型26例,表现为1条或数条眼外肌增粗、肥大。结论:CT和MRI能对眼眶炎性假瘤确切定位及分型,为临床治疗方案提供重要依据,二者的结合极大地提高了眼眶炎性假瘤的正确诊断率。

The diagnostic value of CT and MRI in orbital inflammatory pseudotumor

Objective：To evaluate the CT and MRI for the diagnosis and differential diagnosis of orbital inflammatory pseudotumor.Methods：To retrospectively study the imaging findings of orbital inflammatory pseudotumor in 63 cases（CT 63 cases,MRI 29 cases） confirmed by the clinical and pathology.Results：According to the site of lesions and morphological features,the former compartment is divided into ① the type of before the interval in 2 cases showed swelling of the eyelids;② the type of inflammation around sclera in 1 case,expressed as the wall of eyes thickening;③ the type of optic perineuritis in 3 cases,showed optic nerve enlargement;④ the type of diffusion in 10 cases,showed lesions both invaded the organization before orbital septum at the same time the ophthalmoplegia,the optic nerve,the eye ring,the lacrimal gland,and the orbital fat or orbital tissues;⑤ the type of mass in 12 cases,showed clear boundary;⑥ the type of lacrimal gland inflammation in 9 cases,showed lacrimal gland enlargement;⑦ the type of myositis in 26 cases showed one or several extraocular muscles enlargement and hypertrophy.Conclusion：CT and MRI can exactly locate the orbital inflammatory pseudotumor and make its classification as an important basis for clinical treatment programs,and the combination of both can greatly enhance the correct rate of diagnosis in orbital inflammatory pseudotumor.