蝶鞍扩大

在复查MR中，有9例病人的垂体形态和蝶鞍扩大程度出现改变，1例空蝶鞍和蝶鞍稍扩大病人在复查MR中未见明显变化。

The changes of the severity of pituitary concave and sellar enlargement presented in 9 IIH patients in serial MR studies .

结果多数Rathke′s囊肿在X线平片显示无蝶鞍扩大，这在影像诊断中有助于同囊性垂体腺瘤相区别。

Results The majority of Rathke ′ s cleft cysts were exhibited no enlargement of the sella turcica on plain X-rays , which may be helpful in differentiating cystic pituitary adenoma .

例4肿瘤位于鞍内及鞍上，蝶鞍扩大，垂体未显示，肿瘤前部T1WI和T2WI均为高信号，后部T1WI信号稍高，T2WI与白质信号相同。

The tumor of case 4 was in sella turcica and protruded to suprasellar region , the anterior of which showed high signal on T_1WI and T_2WI , while the posterior of the mass manifested little high signal on T_1WI and the same signal as the white matter on T_2WI .

结果：全部病人在首次MR检查中均发现不同程度的空蝶鞍或出现蝶鞍扩大。

Results : The different degree of partial empty sella and sellar enlargement were present in all case in the initial MR studies .

结果总结出空泡蝶鞍综合征的MRI征象有：（1）蝶鞍扩大；

Results On MR imaging , ESTS in all patients were found to be the following features : ( 1 ) sella turcica ;