目的探讨脑胶质瘤MRI表现特点及其鉴别诊断。方法回顾性分析影像学资料完整并经手术病理证实的53例胶质细胞瘤，探讨MRI表现与肿瘤病理类型的关系。结果  ①13例弥漫性星形细胞瘤中11例为囊实性，实性为主，6例无强化，3例呈斑点轻中度强化，2例斑片状明显强化，2例完全囊变呈环状强化；②5例毛细胞型星形细胞瘤4例为大囊伴壁结节且附壁结节明显强化，1例为完全囊变不强化；③7例少突胶质细胞瘤和4例混合性胶质瘤均为囊实性，10例斑点状或线状轻中度强化，1例明显强化；④10例胶质母细胞瘤及2例间变型星形细胞瘤均呈囊实性并呈花环状及不规则环状、斑块状明显强化；⑤7例室管膜肿瘤中6例表现为囊实性，囊性为主，明显不规则环状强化，1例为完全囊状不强化；⑥5例脉络丛乳头状瘤均表现为均匀实性肿块且显著强化。结论  脑胶质瘤的囊变形态、类型、强化方式和程度与肿瘤的病理类型关系密切。

Objective To investigate the characteristics of brain glioma MRI and differential diagnosis. Methods The imaging data and the analysis of 53 cases of astrocytoma proved by operation and pathology review, to explore the relationship between MRI manifestations and pathological types. Results ①13 cases of diffuse astrocytoma in 11 cases of cystic, solid, 6 cases with no enhancement, 3 cases showed mild to moderate enhancement in 2 cases of spots, patchy enhancement, 2 cases completely cystic ringlike enhancement; ②In 5 cases of pilocytic astrocytoma in 4 cases of large cyst with a mural nodule and mural nodule enhancement, 1 cases of complete cyst is not enhanced; ③In 7 patients with oligodendroglioma and 4 cases of mixed gliomas were cystic; ④10 cases of punctate or linear light to moderate enhancement, 1 cases enhanced obviously; the 10 cases of glioma and 2 cases of anaplastic astrocytoma showed cystic and showed garland and irregular ring, plaque significantly enhanced; ⑤7 cases the ependymal tumor 6 cases showed cystic solid, cystic, apparently irregular ring like enhancement, 1 cases of complete bladder is not enhanced; ⑥ 5 cases of choroid plexus papilloma showed homogeneous solid masses and significantly enhanced. Conclusion Glioma shape, type, and degree of enhancement and the pathologic types are closely related.