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在CT扫描上所见的视神经及其鞘的异常粗大常是病理性的。如小于正常,则可能诊断视神经萎缩或发育不良。然而,视神经增粗可见于多种肿瘤和非肿瘤性病变。本文复习72例单纯视神经
The abnormal enlargement of the optic nerve and its sheath seen on CT scans is often pathological. If less than normal, it may diagnose optic nerve atrophy or stunted. However, optic nerve thickening can be seen in a variety of tumors and non-neoplastic lesions. This article reviewed 72 cases of simple optic nerve