摘要
目的:探讨腹盆部结外淋巴瘤的CT、MRI、18F-FDG PET-CT多模态成像特点。方法:回顾性分析经手术病理证实的97例腹盆部结外淋巴瘤的临床资料及CT、MRI、18F-FDG PET-CT影像学特点。结果:97例腹盆部结外淋巴瘤患者,发病部位分别为胃肠道、肝脏、胰腺、脾、肾及肾上腺、膀胱等,非霍奇金淋巴瘤(NHL)较霍奇金淋巴瘤(HD)多见,最常见的组织学亚型为大B细胞型淋巴瘤和滤泡型淋巴瘤,T细胞淋巴瘤亦较为常见,CT检查为软组织密度或稍低密度肿块影;MRI T1WI为等或略低信号,T2WI上为等或稍高信号;增强检查呈轻度均质进行性强化,并可见血管分支自然穿行在病变中;18F-FDG PET-CT除上述CT图像特征外,同时表现为病灶摄取18F-FDG明显增高,呈结节样或团块样放射性浓聚,坏死区未见浓聚影。结论:腹盆部结外淋巴瘤影像表现具有一定特征性,CT、MRI、18F-FDG PET-CT多模态检查能够有效提高诊断正确率,最后确诊需依赖于病理。
Objective: To explore the multimodal imaging features of extranodal lymphoma of the abdomen and pelvic and evaluate the diagnostic value. Methods: The clinical data and imaging features of CT, MRI and PET-CT of 97 cases with extranodal lymphoma confirmed by surgery and pathology were analyzed retrospectively. Results: The locations of 97 patients with extranodal lymphoma of the abdomen and pelvic included gastrointestinal tract, liver, pancreas, spleen, kidney and adrenal gland and bladder. Non-hodgkin lymphoma(NHL) was more common than Hodgkin’s lymphoma(HD). The most common histological subtypes were large b-cell lymphoma and follicular lymphoma. T-cell lymphoma was also more common. CT ex-amination showed homogeneous density, MRI examination appeared uniform hypo or isointensity signal. Most showed low to middle degree dynamic delayed enhanced. Extranodal lymphoma of the abdomen and pelvic usually remained intrinsic anatom-ic structures. The lesion uptake of 18F-FDG was significantly higher, which showed nodular or mass sample radioactive concentration. When the necrosis was found in extranodal involvements, necrosis would form a circular-like 18F-FDG uptake increased foci. Conclusion: The CT, MRI combined with 18F-FDG PET-CT imaging features of extranodal lymphoma of the abdomen and pelvic have typical characteristic. It is important to recognize the imaging appearance of extranodal lymphoma to improve diagnostic accuracy. The final diagnosis depends on the pathology.
作者
周俊芬
夏亮
刘纯宝
闫卫鹏
陆涤宇
ZHOU Jun-fen;XIA Liang;LIU Chun-bao;YAN Wei-peng;LU Di-yu(Department of Nuclear Medicine,the Central Hospital of Wuhan,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430014,China;Department of Radiology,Hubei Cancer Hospital,Wuhan 430079,China)
出处
《中国临床医学影像杂志》
CAS
2020年第7期507-511,共5页
Journal of China Clinic Medical Imaging
基金
武汉市卫健委科研项目(立项编号:WX18Q32)资助
分子影像湖北省重点实验室项目资助(编号:02.03.2018-105)。
