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目的 提高对垂体腺瘤的生物学侵袭性生长特点与ＣＴ 和ＭＲＩ表现的认识。方法 进行４２０ 例垂体腺瘤的ＣＴ 和ＭＲＩ检查与手术病理对照分析。结果 ４２０ 例中，鞍内突入蝶窦、鞍上池及第三脑室生长３８０ 例，鞍内及鞍上向鞍旁海绵窦包绕颈内动脉，延伸至颅中窝，向额部、斜坡匍匐侵及生长４０ 例。形态：圆形、花生状、不规则形、哑铃状或腰鼓状。ＣＴ 等、高密度及显著增强占７９９ ％ ，混合密度伴囊性低密度、环行增强占２０１ ％ ；ＭＲＩＴ１ ＷＩ等信号，Ｔ２ ＷＩ高信号、等信号、混合信号占９２３ ％ ；Ｔ１ ＷＩ和Ｔ２ ＷＩ高信号占７７％ ；提示瘤卒中及坏死囊变７３５ ％ ，肿瘤大小１ｃｍ ×０６ｃｍ ×０８ｃｍ ～７ｃｍ ×５２ｃｍ ×６ｃｍ 。病理诊断：嫌色性者２１３ 例，混合性者１１８ 例，嗜酸性者７５ 例，腺瘤（ 未分类）１２ 例，恶性者２ 例。结论 ＣＴ 及ＭＲＩ提供的垂体瘤的整体形态与周围解剖关系等信息，对临床治疗方案制定和预后判断起到重要作用。
Objective To improve the biological invasive growth characteristics and CT and MRI findings of pituitary adenomas. Methods A total of 420 cases of pituitary adenomas were examined by CT and MRI. RESULTS: Of the 420 cases, sphenoid sinus invagination, suprasellar cistern and third ventricle were found to grow in 380 cases. The intrasellar and suprasellar supraspinal cavities surrounded the internal carotid artery and extended to the middle cranial fossa to the forehead and slope. Invasion and growth in 40 cases. Shape: round, peanut-shaped, irregular, dumbbell-shaped or drum-shaped. CT, high density and significant enhancement accounted for 79.9%, mixed density with cystic low density, ring enhancement accounted for 201 %; MTT1 WI signal, T2WI high signal, equal signal, mixed signal accounted for 923% T1WI and T2WI high signal accounted for 7.7%; suggesting tumor necrosis and necrosis 73.5%, tumor size 1cm × 0 6cm × 0 8cm ~ 7cm × 5 2cm × 6cm. Pathological diagnosis: 213 cases of chromophobe, 118 cases of mixed sex, 75 cases of eosinophilia, 12 cases of adenoma (unclassified), and 2 cases of malignant. Conclusion The information of the overall morphology and peripheral anatomy of pituitary tumors provided by CT and MRI plays an important role in the development of clinical treatment plans and prognosis.