Superior semicircular canal dehiscence: a new indication for middle fossa craniotomy. Case report.

Superior semicircular canal dehiscence is a recently described condition resulting in pressure-induced vertigo in affected patients. The diagnosis is established with the appearance of characteristic electronystagmographic and neuroimaging findings. This condition is amenable to surgical treatment by resurfacing of the dehiscence in the defect in the middle cranial fossa floor with preservation of superior semicircular canal function.

Endoscopic image-guided transethmoid pituitary surgery.

Objective: We describe a new endoscopic transethmoid approach for pituitary surgery and to compare it with other surgical techniques.

Study Design And Setting: Eleven patients undergoing pituitary surgery from September 2000 through January 2002 underwent an image-guided endoscopic transethmoid procedure to remove pituitary tumors. Ease of approach, resection, exposure of the surgical field, and operative complications were documented.