小儿腹部Burkitt淋巴瘤结外侵犯的MSCT表现

Multislice spiral computed tomography manifestations of extranodal involvement in pediatric abdominal Burkitt lymphoma

目的:探讨儿童腹部Burkitt淋巴瘤结外侵犯的MSCT表现及其诊断价值。方法:回顾性分析本院22例经病理证实的Burkitt淋巴瘤的腹部MSCT资料,对其结外病变进行分类和影像学表现分析。结果:Burkitt淋巴瘤可侵犯腹盆腔的多个结外脏器,包括腹部实质脏器(8/22)和胃肠道(21/22)。病变多表现为轻度强化的密度均匀的实性肿物,出血、坏死少见,钙化罕见;常伴肠系膜及腹膜后多个肿大淋巴结、大网膜广泛增厚或腹腔积液,以回肠远端浸润型和胰腺多发结节型最多见。结论:Burkitt淋巴瘤常同时侵犯腹盆腔多个结外脏器,儿童Burkitt淋巴瘤腹部结外侵犯的MSCT表现有一定特征性。

Objective：To investigate the multislice spiral CT（MSCT） manifestations of extra-nodal involvement in pediatric abdominal Burkitt lymphoma.Methods： The MSCT materials of pathology proved abdominal Burkitt lymphoma in 22 cases were retrospectively analyzed.Results：Multiple extranodal organs of abdomen and pelvis were frequently invloved in Burkitt lymphoma,including solid organs（n=8） and hollow organs of the gastrointestinal tract（n=21）.The imaging manifestations were mostly presented as homogeneous and mildly enhanced solid mass,but hemorrhage and necrosis were seldom assessed,calcification was rare.Diffuse omental thickening and ascites were frequently revealed with infiltration of distal ileum and multiple nodular lesions of pancreas as the most common.Conclusion：Multiple intra-abdominal and pelvic extranodal organs are commonly involved in pediatric abdominal Burkitt lymphoma with certain imaging characteristics.