摘要
目的 :描述巨大淋巴结增生的CT和MRI增强表现特点 ,旨在提高对本病的认识。方法 :自 1984年 1月～2 0 0 0年 5月间 ,4例巨大淋巴结增生病例接受CT和MRI检查并经手术和病理证实。其中 ,男 2例 ,女 2例 ,年龄 18～ 5 6岁 ,平均 41岁。结果 :4个病例中 2例病灶位于肠系膜 ,2例位于腹膜后区 ,局限型 3例 ,弥漫型 1例。采用动态增强和螺旋CT多期扫描技术 ,病灶在动脉期或在动态增强早期明显强化 ,所有的病灶在延迟期均表现为持续强化。MRIT1WI 1例表现为低信号 ,1例为中等信号 ,T2 WI均呈高信号 ,动态增强扫描病灶的强化方式与CT一致。结论 :系膜或腹膜后区富血供的病变 ,在动脉期明显强化 ,延迟期持续强化 ,CT值接近主动脉密度者 。
Objective:The purpose was to describe the most suggestive imaging finding of uncommon disease in the abdomen for the correct diagnosis of Castlemans disease.Methods:January,1984 to May,2000 abdominal CT in 4 patients with confirmed Castleman's disease were retrospectively reviewed.Patients were 18～56 yeas old (mean=41);two were men and two women.Diagnosis of Castleman disease was done by surgery and pathology.Results:The lesion was detected in 4 cases and suggestive diagnosis made in one patient.In our series,the lesions were located 2 at the mesentery,2 at the retroperitoneal,with localized Castleman disease (hyaline cascular type N=3) and with disseminated Castleman(plasma cell type N=1),at CT,all lesions show marked enhancement after contrast administration at arterial phase and delay scan and the attenuation similar to aorta,calcification was seen in one patient.2 lesions are hypointense on T 1 weighted images and hyperintese on T 2 weighted images and show contrast enhancement in a similar pattern to contrast enhanced CT.Conclusion:Although the quite variable CT findings make it extremely difficult to plan a correct diagnosis before operation,using proper CT and MRI technique,understanding the CT findings and combine with clinical data,the suggestive diagnosis could be made.
出处
《放射学实践》
2001年第2期95-97,共3页
Radiologic Practice
