【摘要】 目的　探讨依据MRI推断垂体腺瘤的质地、侵袭性的意义。方法　回顾性分析 2 0 0例经蝶入路切除垂体腺瘤的临床资料、MRI信号特点及手术情况。结果　 138例T2 像为高信号 ,肿瘤质软。T2 像稍高信号2 4例 ,质地中等。T2 像等、低信号 38例 ,腺瘤质韧。MRI显示 16 5例侵袭周围结构 ,术中发现有侵袭征象 12 6例 ,病理报告显示 139例鞍底硬膜被肿瘤侵袭 ,36例蝶窦黏膜有肿瘤侵袭。结论　MRI检查T2 像信号强度与垂体腺瘤的质地有关 ;对垂体腺瘤的侵袭性应根据MRI、术中所见及病检作综合判断更多还原

【Abstract】 Objective To discuss the significance of MRI judgement on pituitary adenomas consistence and invasiveness. Methods Analysis of clinical presentation, MR imaging signal characteristic and intraoperative findings. Results 138 cases were with long T 2MR signal, adenomas with soft texture, 24 cases with longer T 2MR signal consistence moderate, 38 cases were with equal, shorter T 2MR signal consistence hard. MRI showed 165 cases invasiving the surrounding structure. 126 cases were found invasive sign intraoperative. Pathological report showed the sellar floor dural of 139 cases and 36 cases sphenoidal sinus mucosa were invasived. Conclusions There is relationship between the signal of T 2 weight and pituitary adenomas consistence. It should be made a comprehensive judgement on invasiveness of pituitary adenoma according to MRI, intaoperative findings and pathological examination.更多还原