摘要
目的:探讨慢性脑内血肿CT、MRI的误诊原因及鉴别诊断依据。方法:回顾性分析临床及手术证实的21例慢性脑内血肿的影像资料,其中21例CT平扫及增强,8例同时行MRI检查。结果:术前5例诊断为囊性胶质瘤,4例转移瘤,1例脑脓肿,此10例开颅手术证实为脑内血肿,并伴反应性胶质增生;另11例临床动态观察吸收后证实。结论:慢性脑内血肿具有占位效应轻、均匀环形强化及MRI图像上有均匀铁环的影像特点,详细询问病史及治疗后动态观察可以减少误诊。
Objective： To investigate the causes of CT and MRI misdiagnosis of chronic intra-cerebral hematoma （CIH） as well as the differential diagnosis. Methods： The imaging materials （including 21 cases having CT without and with contrast administration,8 cases having MRI simultaneously） of 21 cases with CIH confirmed by surgery or clinical follow-up were analyzed retrospectively. Results： Of the 10 cases having surgery and proved to be misdiagnosed, the diagnosis before operation were cystic glioma （five cases）,intra-cranial metastases （4 cases） and brain abscess （1 case）. The pathology diagnosis was intracerebral hematoma associated with reactive gliosis. Of the other 11 cases with CIH,they were proved by clinical follow-up. Conclusion：The typical imaging characteristics of CIH included mild mass effect,homogeneous ring-like enhancement on CT and homogeneous hoop-like appearance due to hemoglobin component on MRI. Misdiagnosis of CIH could be avoided by awareness of clinical history and short-term follow-up.
出处
《放射学实践》
2008年第5期494-497,共4页
Radiologic Practice
关键词
脑疾病
血肿
误诊
体层摄影术
X线计算机
磁共振成像
Brain diseases
Hematoma
Diagnostic errors
Tomography, X-ray computed
Magnetic resonance imaging
