白色表皮样囊肿的CT、MRI异常表现及病理相关性2例报告

The Internet Journal of Radiology Pub Date : 2012-05-21 DOI:10.5580/2cb9

Swati Shah, P. S. Shah, Deven S. Jhaveri

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引用次数: 1

摘要

脑表皮样囊肿通常在CT扫描上表现为低密度病变，在T1W MR上表现为低密度病变，无增强，DWI上表现为明显的扩散受限。很少在T1W上呈高强度，称为白色表皮样。我们描述了两例罕见的白色表皮样囊肿，其CT和MR表现不寻常，DWI上无扩散限制，ADC图上信号下降。

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Unusual Appearances Of White Epidermoid Cyst On CT And MRI With Pathological Correlation – Two Case Reports

Epidermoid cysts in brain are commonly seen as hypo dense lesions on CT scan, hypo intense on T1W MR imaging with no post contrast enhancement and show marked restricted diffusion on DWI. Rarely they are hyper intense on T1W imaging and referred as white epidermoid. We describe two unique cases of rare white epidermoid cyst with unusual CT and MR features that showed no restriction of diffusion on DWI with a signal drop on ADC Map.

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The Internet Journal of Radiology

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