为提高人们对慢性扩张性脑内血肿病的认识，总结了１１例慢性扩张性脑内血肿病的临床及影像学特点。该病常于外伤后隐匿发病，病程进展缓慢，ＣＴ表现为圆型或类圆型病变，强化时周边环状呈圆型或类圆型；ＭＲＩ检查显示血肿纤维性包膜具有确诊意义。根据病史及临床表现结合影像学检查有助于该病的诊断。 In order to raise awareness of chronic dilated intracerebral hematoma, clinical and imaging features of 11 patients with chronic dilated intracerebral hematoma were summarized. The disease often occult onset after trauma, the course of progress is slow, CT showed round or oval-like lesions, strengthen the surrounding ring was round or round; MRI examination showed hematoma fibrous capsule with definitive significance. According to medical history and clinical manifestations combined with imaging help to the diagnosis of the disease.