腹部局限型Castleman病的CT和MRI诊断

目的：探讨腹部局限型Castleman病的CT和MRI表现及其诊断价值。方法：回顾性分析经手术病理证实的6例腹部局限型Castleman病影像资料,其中5例行CT检查,1例行MRI检查。结果：4例病变位于腹膜后,2例位于肠系膜。病理分型,透明血管型5例和浆细胞型1例。CT检查5例,平扫密度较均匀,边界清晰锐利,1例伴有钙化,1例见卫星灶,增强扫描动脉期2例肠系膜肿块以及1例肾上腺区域肿块明显强化,密度均匀,门静脉期持续强化;1例胰头后方肿块中等均匀强化,1例肾上腺区域肿块中等程度周边不规则强化,门静脉期强化范围扩大。2例肠系膜肿块以及1例胰头后方肿块内部和周边可见粗大、扭曲的血管影。MRI检查1例,肿块位于后腹膜下腔静脉旁,T1WI低信号,T2WI高信号,信号均匀,边界清晰锐利,增强扫描动脉期均匀强化,门静脉期持续强化。结论：CT是诊断腹部局限型Castleman病的重要影像学手段,影像学表现与病理类型密切相关,多数透明血管型病变具有一定的特征。

CT and MRI Diagnosis of Localized Castleman's Disease of Abdomen

Objective:To evaluate the CT and MRI features of localized Castleman's disease of abdomen.Methods:CT findings of 5 cases and MRI findings of 1 case with surgery and pathology proved abdominal localized Castleman's disease were retrospectively analyzed.Results:The location of lesions were as follows:mesentery(n=2),retroperitoneum(n=4).As for histopathologic classification,there were hyaline-vascular type(n=5) and plasma cell type(n=1).CT appearances of these 5 patients were well-defined soft tissue mass with...