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肝脏淋巴瘤CT和MRI表现 预览 被引量:19

CT and MRI Characteristic of Hepatic Lymphoma
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摘要 目的:提高对肝脏淋巴瘤CT及MRI表现的认识。材料和方法:回顾性分析24例肝脏淋巴瘤,其中霍奇金病(HD)5例,非霍奇金淋巴瘤(NHL)19例。2例原发性肝NHL分别为手术及穿刺证实,另22例在发病时或随访过程中肝脏出现占位性病变,治疗后肝脏病灶均有缩小或消失,以此推断淋巴瘤肝脏浸润。21例行CT扫描,8例行MRI扫描。结果:①病变表现形式:肝脏单发病灶8例(33%),多发病灶15例(63%),肝脏弥漫性浸润1例(4%)。②CT表现:平扫肝脏病变绝大多数呈低密度(13/14),增强扫描显示病灶无明显强化(11/21)或仅表现为轻度强化(10/21)。③MRI表现:T1WI肝脏所有病变均呈低信号,T2WI大多数(6/8)呈高信号,增强扫描表现为无明显强化(3/8)或轻度强化(5/8):④本组有6例血管穿过病灶或病灶沿血管浸润而血管本身无明显狭窄、包绕等受侵表现。结论:肝脏淋巴瘤多数平扫呈低密度或低信号(T1WI),边界清楚,增强扫描大多数无明显强化或轻度强化。病灶内有血管穿过或病灶沿血管浸润而血管本身无明显受侵可能具有一定特征。结合临床资料,仔细分析肝脏病灶特点,肝脏淋巴瘤可以被正确认识。 [Abstract] Purpose: To improve realization of CT and MRI characteristic in patients with hepatic lym- phoma. Materials and Methods: We reviewed 24 patients whose diagnosis of lymphoma was finally made histologically. In all patients, five of them were diagnosed Hodgkin's disease (HD) and 19 of them were diagnosed non- Hodgkin' s lymphoma (NHL) . Two cases were primary hepatic NHL ( one by op- eration and another by biopsy). In other 22 cases, liver lesions were observed at the onset of the disease or during the follow - up period. Some liver lesions disappeared and others reduced after treatment, thus, we concluded liver was infiltrated by lymphoma. CT scans were performed in 21 patients, MRI examinations were performed in 8 patients. Results: ~ In all 24 cases, eight cases presented single liver lesion (33%), 15 cases presented multiple lesions (63%), only one case presented diffuse lesions(4% ). (~) Unenhanced CT showed hypoattenuating lesions in most cases (13/14) ; Enhanced CT showed no evi- dent enhancement (11/21) or mild enhancement (10/21). (~ On MR T~WI imaging, all lesions were pre- sented as hypointense, on MR T2WI imaging, most cases (6/8) showed hyperintense. After contrast ad- ministration, all lesions presented no evident enhancement (3/8) or mild enhancement (5/8). (~) Blood vessel traverse lesions or lesions invade along the vessels and the vessels were not narrowed and encir- cled in 6 cases. Conclusion: In most cases, liver lymphoma represent hypoattenuation or hypointense, manifest clear margin, have no evident enhancement or mild enhancement after contrast administration. Blood vessel traversing lesions or lesions invading along the vessels without narrowing or encircling may be a characteristic sign. Combining imaging characteristic and clinical information, liver lymphoma can be identified correctly.
作者 丁建辉 彭卫军 周良平 严福华 朱雄增 许玲辉 张帅 钟国民 唐峰 DING Jian - hui, PENG Wei - jun, ZHOU Liang -ping, et al(1. Department of Radiology, Cancer Hospital, Fudan University; 2. Department of Radiology, Zhongshan Hospital, Fudan University; 3. Department of Pathology, Cancer Hospital, Fudan University)
出处 《中国医学计算机成像杂志》 CSCD 2008年第5期 409-414,共6页 Chinese Computed Medical Imaging
关键词 淋巴瘤 肝脏 体层摄影术 X线计算机 磁共振成像 Lymphoma Liver Tomography, X - ray computed Magnetic resonance imaging
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参考文献7

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二级参考文献12

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