摘要
目的分析鞍区肿瘤及肿瘤样病变的MR表现,探讨其鉴别诊断。方法回顾性分析20例经手术病理证实的鞍区肿瘤及肿瘤样病变的MRI表现。结果 20例鞍区肿瘤及肿瘤样病变定位主要区别于鞍内或鞍上,MRI检查可多方位成像,对于病变的定位有很大帮助;鞍区肿瘤MRI检查,T1WI大多呈低、等信号或混杂信号,T2WI大多呈均匀高信号或不均匀高低混杂信号;鞍区肿瘤常有囊变、钙化及出血,MRI检查对于钙化的显示不如CT。结论结合病变的部位、发病年龄、MR信号特点,强化程度等表现可提高诊断的准确率。
Objective Analysis saddle area tumors and the tumor samples of the lesion MR performance, discusses the differential diagnosis. Methods Of operation were retrospectively analyzed 20 eases of pathology saddle area tumors and the tumor samples of the lesion MRI performance. The results, 20 cases, Rathke ＇sl example, araehnoid cysts in 2 eases, 8 cases of pituitary adenoma, cranial pharynx article 4 cases, this meningioma in 2 cases, pectin mother cell tumor in 1, and epidermoid cyst in 1, and reproductive cell tumor in 1. Results （1） 20 cases of saddle area tumors and the tumor samples lesions in the main difference between positioning in the saddle or saddle, MRI imaging can be multiple, for the positioning of the lesions are of great help; （2） saddle tumors in an MRI, T1WI is low, and most signal or mixed signals, T2WI mostly homogeneously high signal or not uniform height mixed signal; （3） saddle tumors in change, and were often calcified bleeding, an MRI for calcified display as CT. Conclusion With the parts of the age of onset, pathological changes, MR signal characteristic, strengthen the degree and so on performance can improve the diagnosis accuracy.
出处
《当代医学》
2012年第25期102-103,共2页
Contemporary Medicine
