项型纤维瘤的CT和MRI诊断
Computerized Tomography Theory and Applications（2023）
Abstract
目的:探讨项型纤维瘤的CT和MRI特征.方法:回顾性分析8例NTF的影像学表现,病变均经外科切除和病理证实,其中2例行CT平扫检查,6例行MRI扫描,2例同时行MRI增强扫描,分析NTF的临床表现和CT、MRI征象.结果:8例肿物位于骶尾部皮下,质韧;CT和MRI显示病灶局部皮肤增厚,皮下脂肪内见片状、条索状影;CT呈稍高密度,T1WI呈低信号,T1WI压脂呈低-等信号,T2WI压脂呈低信号,DWI呈等信号,内见交错脂肪样密度或信号影;形态不规则,边界不清,无明确包膜.2例行增强扫描,均呈轻度强化.结论:项型纤维瘤的MRI和CT表现具有特征性,结合病史、症状及体征,有助于项型纤维瘤的诊断.
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