囊性视交叉病变：非典型磁共振成像表现
Cystic Optic Chiasm Lesion: Atypical Magnetic Resonance Imaging Findings.
作者信息
Haque Sameen, Reid Kate, O'Neil Ross, Lueck Christian
机构信息
Department of Neurology, The Canberra Hospital, Canberra, Australian Capital Territory, Australia.
Department of Ophthalmology, The Canberra Hospital, Canberra, Australian Capital Territory, Australia.
出版信息
Neuroophthalmology. 2017 Apr 10;41(4):211-214. doi: 10.1080/01658107.2017.1298628. eCollection 2017 Aug.
Intrinsic cystic lesions in the optic chiasm are an uncommon cause of bitemporal hemianopia compared with compressive lesions extrinsic to the chiasm. A 40-year-old man presented with difficulty driving. Clinical assessment revealed a bitemporal hemianopia. Magnetic resonance imaging showed an unusual cystic appearance of the chiasm. The appearance was felt to be most likely secondary to previous infective or inflammatory disease, but biopsy was not undertaken given the very significant risk of further visual loss.
与视交叉外部的压迫性病变相比，视交叉内的先天性囊性病变是双颞侧偏盲的罕见原因。一名40岁男性因驾驶困难就诊。临床评估发现双颞侧偏盲。磁共振成像显示视交叉有异常的囊性表现。这种表现很可能继发于既往感染或炎症性疾病，但鉴于进一步视力丧失的风险极大，未进行活检。
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