This head CT scan demonstrates a mass with irregular margins in the region of the sella. Such a mass may impinge upon the opticchiasm, just like a pituitary adenoma.
头颅CT显示颅咽管瘤，在蝶鞍可见边缘不规则的大肿块，象垂体腺瘤一样压迫视交叉。
2
The cavernous sinus was the most easily involved structure (29.4%), followed by opticchiasm (21.8%) and clivus (14.1%).
海绵窦是最容易受累的结构（29.4%），其次是视交叉（21.8%）和斜坡（14.1%）。
3
Objective:To provide morphological evidences for the reasons of the visual field defect caused by the opticchiasm compressing through saddle area tumors.