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目的：探讨胼胝体区胶质瘤的ＭＲＩ表现，提高对该类肿瘤的诊断与鉴别诊断能力。材料与方法：对３４例胼胝体区胶质瘤行ＭＲＩ平扫及增强扫描，并与病理结果对照。结果：胼胝体区胶质瘤呈长Ｔ_１长Ｔ_２异常信号，信号强度均匀或不均匀，有明显占位效应，增强扫描可出现不同程度的增强。部分胼胝体区胶质瘤向两侧脑叶侵犯，出现“蝴蝶征”，此征象有助于定位诊断。结论：胼胝体区胶质瘤是颅内特殊部位的肿瘤，ＭＲＩ对其诊断和鉴别诊断具有重要临床价值。
Objective: To investigate the MRI findings of corpus callosum area gliomas and to improve the ability of diagnosis and differential diagnosis of such tumors. Materials and Methods: Thirty-four cases of corpus callosum area gliomas were scanned by MRI and contrast-enhanced MRI. Results: The corpus callosum glioblastoma showed a long T_1 long T_2 abnormal signal, the signal intensity was uniform or uneven, obvious space occupying effect was observed, and the enhancement scanning could be enhanced to some extent. Part of the corpus callosum glioma to the lateral lobe invasion, the emergence of “butterfly sign”, this sign helps to locate the diagnosis. Conclusion: The corpus callosum area glioma is a tumor in a special part of the brain. MRI has important clinical value in its diagnosis and differential diagnosis.