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３６例术前头颅ＣＴ诊断为脑胶质瘤，术后病理证实为其它病变的颅内低密度灶，其中胶质细胞增生４例，局限性脑炎３例，脑转移瘤６例，脑脓肿２例，脑结核瘤３例，脑血管畸形２例，脑血吸虫病３例，脑外伤后软化灶２例，脑梗塞５例，脑穿通畸形２例，多发性硬化灶４例。重点讨论了ＣＴ扫描对颅内低密度病灶的诊断及鉴别诊断。
Thirty-six cases were diagnosed as brain gliomas by cranial CT before operation, and intracranial low-density lesions were confirmed by pathology. Among them, 4 were glial cell hyperplasia, 3 were localized encephalitis, 6 were brain metastases, 2 cases, 3 cases of tuberculoma, 2 cases of cerebrovascular malformations, 3 cases of cerebral schistosomiasis, 2 cases of post-traumatic softening lesions, 5 cases of cerebral infarction, 2 cases of cerebral perforating deformities and 4 cases of multiple sclerosis. Focus on the CT scan of intracranial low-density lesions diagnosis and differential diagnosis.