This is the sinus area below your cheeks and above your teeth. Tumors can also develop in your nasal cavity. They can also develop in the sphenoid sinuses that are in the hollow spaces in the ...

There are four paired sinuses in the head. The most posterior (farthest toward the back of the head) of these is the sphenoid sinus. The sphenoid sinuses are located in the sphenoid bone near the ...

Transsphenoidal pituitary surgery is the most common technique for pituitary tumor removal. Transsphenoidal means your surgeon operates through your sphenoid sinus (a hollow space behind your nose and ...

Figures 1-4 show imaging findings. Figure 1. Axial noncontrast CT (A) and CT of bone window (B) show increased soft tissue in right sphenoid sinus with intact bony structures of the sinus.

A midline intracranial tumor, such as a pituitary macroadenoma, a meningioma, or a sphenoid sinus tumor, presents with bitemporal visual field defects because the tumor can cause compression or ...