眼眶神经源性肿瘤影像学特征及临床意义

目的 探讨超声、CT及MRI对眼眶神经源性肿瘤的诊断价值.方法 收集长征医院眼科2004年1月至2007年11月经手术治疗,具有完整病理资料的眼眶神经源性肿瘤76例,回顾分析超声、CT、MRI检查的影像学表现.结果 各种眼眶肿瘤的影像学表现均有一定的特征性.超声检杳有利于揭示病变内的组织结构.CT利于显示病变的空间位置以及相邻结构的继发改变.MRI即可以显示病变的空间位置、病变蔓延情况.也可以通过显示信号强度提示病变的内部结构.结论 联合应用眼部超声、CT、MRI是发现和诊断眼眶肿瘤的重要检查手段,对大多数肿瘤可以做出明确定性、定位诊断.

Imaging characteristic of orbital neurogenic tumors and clinical significance

Objective To probe value of ultrasound, CT and MRI in diagnosis of four major orbital neurogenic tumors including glioma,optic nerve sheath meningioma,neurilem- morea and neurofibroma. Methods 76 patients with orbital neurogenic tumors underwent operation in Changzheng hospital during January 2004-November 2007.The patients had complete pathological data,which were referred to to evaluate locating and identifying capacity of imaging methods including ultrasound,CT and MR1.Results Some orbital tumours have characteristic manifestations respectively in iconography.The value of ultrasound is that it can reveal the neoplasm structure interior,CT can reveal the location of the neoplasm and some changes secondarily, MRI is good at revealing the location of the neoplasm and the extension.Conclusions Combination use of ultrasound, CT and MRI.is an important examination method for diagnosing orbital neoplasms, and the diagnosis and differential diagnosis of orbital neoplasms in most cases can be made correctly.