摘要
目的探讨肝脏淋巴瘤的影像学特点。方法回顾性分析10例初诊未治的肝脏淋巴瘤患者的临床表现、病理类型与影像学表现。结果 10例均为B细胞型非霍奇金淋巴瘤(4例原发性,6例继发性),表现为单发肿块型4例,多发结节型4例,浸润型2例。3例CT平扫呈均匀低密度,6例CT增强扫描呈轻度强化,强化程度低于正常肝实质。4例MRI平扫者,T1WI呈低信号,T2WI及脂肪抑制序列呈均匀中高信号,2例DWI扫描呈明显扩散受限,2例行MR增强扫描呈轻度强化。4例有血管穿行肿瘤但无明显受侵征象。7例伴有肝脏区域淋巴结侵犯。原发肝脏淋巴瘤的影像表现与继发性相仿。结论肝脏淋巴瘤的影像表现可多种多样,多数呈密度/信号均匀,增强后呈轻度强化,血管于肿瘤内穿行而无受侵是肝脏淋巴瘤的较为特征性表现。
Objective To evaluate the imaging features of hepatic lymphoma. Method A retrospective review was performed on 10 patients with histologically proved hepatic lymphoma and their clinical manifestations, histologi-cal types and imaging features were analyzed. Result All of 10 cases were B-cell non-Hodgkin＇s lymphoma （4 pri-mary, 6 secondary）, in which four cases appeared as solitary mass type, four cases were with multiple nodules, and two cases were diffusely infiltrative in nature. In regard of imaging, 3 cases showed a uniform hypodense on plain CT scan, 6 cases showed mild enhancement that was lower than liver parenchyma on enhanced CT scan. Of the four cases administered with plain CT scan, all demonstrated hypointense on T1WI, homogeneous hyperintense on T2WI and T2/FS （fat suppression sequences）. Two cases demonstrated limited diffusion on DWI, and two cases demonstrat-ed mild enhancement on contrast-enhanced MR scans. The special observation that the uninvaded vascularity in the tumors were found in 4 cases, and 7 cases were observed with combined regional lymph nodes involvement. Primary hepatic lymphoma has the similar imaging characteristics with secondary hepatic lymphoma. Conclusion CT and MRI manifestations of hepatic lymphoma are varied, most of which showed uniform density and （or） intensity, and mild enhancement. The special observation that the uninvaded vascularity in the tumors is the feature of hepatic lym-phoma.
出处
《癌症进展》
2015年第5期512-518,共7页
Oncology Progress
基金
北京希望马拉松专项基金(LC2012B24)
关键词
肝脏
淋巴瘤
CT
MRI
CT
MRI
hepatic
lymphoma
computed tomography
magnetic resonance imaging
