颅内皮样囊肿的异常影像学表现。
Unusual imaging appearance of an intracranial dermoid cyst.
作者信息
Brown J Y, Morokoff A P, Mitchell P J, Gonzales M F
机构信息
Department of Radiology, Royal Melbourne Hospital & University of Melbourne, Parkville Victoria, Australia.
出版信息
AJNR Am J Neuroradiol. 2001 Nov-Dec;22(10):1970-2.
Abstract
Intracranial dermoid cysts have characteristic CT and MR imaging findings that generally make preoperative diagnosis straightforward. Enhancement of uncomplicated intradural dermoid cysts on CT or MR studies has been reported but is rare. We present a case of a posterior fossa dermoid cyst that was not only hyperattenuating on CT scans but also contained a mural nodule with clear evidence of enhancement on MR images.
摘要
颅内皮样囊肿具有特征性的CT和MR成像表现，通常使术前诊断变得简单直接。关于单纯硬膜内皮样囊肿在CT或MR检查中出现强化的情况已有报道，但较为罕见。我们报告一例后颅窝皮样囊肿，其不仅在CT扫描上呈高密度，而且在MR图像上有一个明显强化的壁结节。
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