卵巢透明细胞癌的CT、MRI表现
Chinese Imaging Journal of Integrated Traditional and Western Medicine(2019)
Abstract
目的:探讨卵巢透明细胞癌(OCCC)的CT、MRI特征,以提高对该病的诊断准确率.方法:回顾性分析经手术病理证实的26例OCCC的CT和MRI资料,6例行CT检查,17例行MRI检查,3例同时行CT和MRI检查,综合分析其影像学特点.结果:26例中,双侧卵巢发病7例,右侧13例,左侧6例.肿瘤呈类圆形、椭圆形,20例边界光滑,肿瘤最大径6.9~27.0 cm,中位值13.7 cm;囊实性肿块19例,实性肿块7例.CT特征:囊性成分平扫CT值17.0~31.0 HU,实性成分平扫CT值29.0~47.0 HU,增强扫描CT值为59.0~84.0 HU;增强扫描囊性成分无强化,实性成分动脉期强化明显,静脉期和延迟期呈持续性强化.MRI表现:肿瘤实性成分T1WI呈等信号,T2WI呈稍高、等信号,DWI实性成分呈明显高信号;实性成分动态增强扫描动脉期强化明显,延迟期明显持续性强化,TIC呈"快速上升平台型".结论:OCCC的CT、MRI表现有一定的特征性,仔细分析,可明显提高诊断正确性.
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