目的探讨慢性扩展性脑内血肿(chronic expanding intracerebral hematoma,CEICH)的MRI表现。方法回顾性分析5例经手术及病理证实的CEICH患者的MRI资料。结果 5例中,3例为动静脉畸形,2例为小海绵状血管瘤,包膜内有不同时期的血肿;T2WI、磁敏感加权成像(SWI)、扩散加权成像(DWI)分别可见高低信号形成的液-液平面,完整光滑的囊壁,囊壁内外的流空血管影;增强扫描示邻近脑质点状异常强化影;周围脑实质轻度脑水肿。结论 CEICH的MRI表现具有一定特点,结合增强扫描、SWI、DWI,可以提高其诊断水平。 Objective To investigate the MRI findings of chronic expanding intracerebral hematoma (CEICH). Methods The MRI data of 5 patients with CEICH confirmed by surgery and pathology were retrospectively analyzed. Results Among the 5 cases, 3 were arteriovenous malformations, 2 were small cavernous hemangiomas, and there were different hematomas within the capsule. T2WI, magnetic resonance weighted imaging (SWI) and diffusion-weighted imaging (DWI) The formation of the liquid - liquid level, the entire smooth wall, the flow of empty blood vessels inside and outside the wall; enhanced scan showed abnormal enhancement of adjacent brain mass spots; around the brain parenchymal brain edema. Conclusion The MRI findings of CEICH have certain characteristics. Combined with enhanced scan, SWI and DWI, the diagnosis of CEICH can be improved.