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目的：报道１５例颅内多发原发性肿瘤的ＣＴ和ＭＲＩ表现，并评价ＣＴ与ＭＲＩ的诊断价值。方法：１５例颅内多发原发性肿瘤均行ＣＴ检查，其中４例行ＭＲＩ检查，均经手术病理证实。结果：多发胶质瘤４例，其中恶性室宫膜瘤３例，表现为脑室内及额顶叶脑实质内实质性肿块或囊性病变，多发星形细胞瘤１例，病变分别位于额叶及小脑蚓部；双侧听神经瘤及多发脑膜瘤各３例、ＣＴ和ＭＲＩ表现均较典型；脑膜瘤合并胶质瘤３例、脑膜瘤合并听神经瘤１例和垂体瘤合并胶质瘤１例。结论：结合肿瘤的ＣＴ和ＭＲＩ表现特点，可对大多数颅内多发原发性肿瘤作出正确诊断，ＭＲＩ对脑膜瘤的诊断优于ＣＴ。
OBJECTIVE: To report the CT and MRI findings of 15 cases of intracranial multiple primary tumors and evaluate the diagnostic value of CT and MRI. Methods: Fifteen patients with multiple primary intracranial tumors were examined by CT, of which 4 were examined by MRI and confirmed by surgery and pathology. Results: Multiple glioma in 4 cases, including 3 cases of malignant hysteroma, showed intracerebroventricular and frontal lobe parenchymal mass or cystic lesions, multiple astrocytoma in 1 case, the lesions were located in the frontal lobe And cerebellar vermis; bilateral acoustic neuroma and multiple meningioma in 3 cases, CT and MRI were more typical; meningioma with glioma in 3 cases, meningioma with acoustic neuroma in 1 case and pituitary adenoma with glioma in 1 case . Conclusion: Combined with CT and MRI features of the tumor, most of the primary intracranial tumors can be correctly diagnosed. MRI is superior to CT in the diagnosis of meningioma.