目的 :探讨巨大垂体腺瘤影像特征。方法 :回顾分析经手术病理证实的 3 2例巨大垂体腺瘤影像表现 ,并结合文献讨论。结果 :3 2例巨大垂体腺瘤直径全部 3 0mm ,其中 12例直径 40mm ,2例直径 60mm ;侵袭性巨大垂体腺瘤 6例 (其中 1例部分细胞异形间变 )。结论 :巨大垂体腺瘤一般都具有影像特征 ,尤其是MRI成像 ,影像更清晰 ,能分辨出鞍区细微组织结构 ,是巨大垂体腺瘤首选的检查诊断方法。 Objective : To investigate the imaging features of giant pituitary adenomas. Methods : Retrospective analysis of the imaging findings of 32 giant pituitary adenomas confirmed by surgery and pathology was performed. Results: The diameters of 32 cases of giant pituitary adenomas were all 30 mm, of which 12 cases were 40 mm in diameter and 2 cases were 60 mm in diameter; 6 cases of invasive giant pituitary adenomas (including 1 case of partial heteromorphosis). Conclusions: Giant pituitary adenomas usually have image features, especially MRI imaging. The images are clearer and can distinguish the subtle tissue structure of the saddle area. It is the preferred method for examination and diagnosis of giant pituitary adenomas.