腹部结外脏器原发性淋巴瘤的CT表现  

CT features of abdominal primary extranodal organ lymphoma

作　　者：程强[1] 阎晓朋 杨学华 高剑波[1] 

机构地区：[1]郑州大学第一附属医院影像科,河南郑州450052 [2]郑州颐和医院影像科,河南郑州450047

出　　处：《医学影像学杂志》2016年第2期263-265,268,共4页Journal of Medical Imaging

摘　　要：目的探讨腹部结外脏器原发性淋巴瘤的CT表现。方法回顾性分析经病理证实的31例腹部结外脏器原发性淋巴瘤的CT表现,并与病理结果对照分析。结果 1）31例均为非霍奇金淋巴瘤,初诊时均无明确淋巴瘤病史,其中B细胞性26例（83.8%）,T细胞性3例（9.7%）,NK/T细胞性2例（6.5%）;2）31例结外脏器淋巴瘤,其中肾脏6例,肝脏、肾上腺和直肠各4例,胃3例,脾脏、膀胱和卵巢各2例,胆囊,胰腺,输尿管和子宫各1例;3）累及空腔脏器者13例,CT表现为管壁不均匀增厚（7.8-26.4mm）,其中弥漫性增厚5例,局限性增厚7例,1例累及子宫CT表现为子宫体积明显增大,子宫内软组织肿块影,增强扫描呈中度均匀强化。累及实质脏器者18例共38个病灶,呈圆形或类圆形23个,地图样或不规则形15个,病灶直径2.1-14.2cm,平均直径6.3cm。32个病灶CT平扫密度均匀,6个病灶密度不均,无出血或钙化;增强扫描轻度强化16例,中度强化21例,明显强化1例,8例可见＂血管漂浮征＂。结论腹部结外脏器原发性淋巴瘤的CT表现具有一定的特征性,CT对其诊断具有重要价值。Objective To evaluate CT features of abdominal primary extranodal organ lymphoma. Methods The CT findings of 31 pathologically proved cases of extranodal organ lymphoma were retrospectively reviewed and correlated with pathology. Results 1） All the 31 cases were non-Hodgkin lymphoma proven by histological and immunohistochemical examination without the history of intranodal lymphoma. 26 of them were B cell type（ 83. 8%）,3 were T cell type（ 9. 7%） and 2 were NK / T cell type（ 6. 7%）; 2） The locations of 31 extranodal lymphomas included kidney（ 6）,liver,adrenal gland and rectum（ 4） respectively,stomach（ 3）,spleen,bladder and ovary（ 2） respectively,gall bladder,pancreas,ureter,and uterus（ 1） respectively; 3） The tumors showed irregular thickening of wall in tubal organ on CT,including diffuse thickening（ n = 5） and local thickening（ n =7）,1 case located in the uterus showed diffuse thickening with tissue nodules and moderately enhanced on CT images. 38 lesions of lymphoma in parenchymal organ were found from 18 patients with 23 appeared as ellipse and 15 as irregular. The diameters of the lesions were 1. 1 - 14. 2 cm with a mean diameter of 6. 3 cm,32 lesions were homogeneous density and 6presented heterogeneous density on plain CT scan,Calcification and hemorrhage were not seen; the masses were enhanced slightly in 16 cases,moderately in 21 cases and significantly in 1 case on CT images,＂vessel floating sign＂were found in 8 patients. Conclusion CT manifestations of abdominal primary extranodal organ lymphoma are relatively specific and CT shows high value for the diagnosis of the disease.

关 键 词：淋巴瘤 结外 体层摄影术 X线计算机 

分 类 号：R733.4[医药卫生—肿瘤] R814.42[医药卫生—临床医学]