颅内表皮样囊肿的磁共振成像

Magnetic resonance of intracranial epidermoids.

作者信息

Wasenko J J, Rosenbloom S A, Estes M, Lanzieri C F, Duchesneau P M

机构信息

Division of Radiology, Cleveland Clinic Foundation, OH.

出版信息

Eur J Radiol. 1991 Sep-Oct;13(2):103-6. doi: 10.1016/0720-048x(91)90089-e.

DOI:10.1016/0720-048x(91)90089-e

PMID:1743186

Abstract

The magnetic resonance images of seven patients with biopsy-proven epidermoids were evaluated. The epidermoids were hypointense on T1-weighted images. Intermediate density images revealed the tumors to be heterogeneous in signal intensity consisting of areas of hypo- and isointensity. Signal intensity on T2-weighted images was hyperintense and inhomogeneous in all but one case. CT performed in five patients demonstrated the tumors to be well-defined hypodense lesions without contrast enhancement.

摘要

对7例经活检证实为表皮样囊肿的患者的磁共振图像进行了评估。表皮样囊肿在T1加权图像上呈低信号。中等密度图像显示肿瘤信号强度不均匀，由低信号和等信号区域组成。除1例患者外，所有患者的T2加权图像上信号强度均为高信号且不均匀。对5例患者进行的CT检查显示肿瘤为边界清晰的低密度病变，无强化。