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目的探讨MRI对侵袭性垂体瘤的诊断价值。方法收集我院2006～2010年经手术病理证实的32例侵袭性垂体瘤的临床资料,对其MRI表现进行分析。结果 32例侵袭性垂体瘤伴有坏死或囊变者14例,伴出血者9例。肿瘤在T1WI呈低、等信号或混杂信号,T2WI为等信号或不均匀高信号,T1WI增强后肿瘤多不均匀强化。结论 MRI有助于侵袭性垂体瘤的诊断及确定肿瘤与周围组织的关系,对临床治疗方案的制定具有直接指导意义。
Objective To investigate the diagnostic value of MRI in invasive pituitary tumors. Methods The clinical data of 32 cases of invasive pituitary adenomas confirmed by surgery and pathology from 2006 to 2010 in our hospital were collected and their MRI findings were analyzed. Results 32 cases of invasive pituitary tumor with necrosis or cystic change in 14 cases, with bleeding in 9 cases. Tumor in T1WI was low, equal signal or mixed signal, T2WI equal signal or uneven high signal, T1WI enhanced tumor heterogeneous enhancement. Conclusion MRI is helpful to the diagnosis of invasive pituitary tumors and to determine the relationship between the tumor and the surrounding tissues, and has direct guiding significance for the formulation of clinical treatment plans.