Trasnasal transsphenoidal surgical resection of pituitary tumors including adenomas, micro and macro prolactinomas. Gamma knife and Peacock stereotactic radiation therapy. Treatment of Cushing's disease, acromegaly, and skull-based lesions. Inferior petrosal sinus sampling. Cranial surgery for suprasellar, parasellar and intracraniol lesions (tumors). Spine surgery for herniated disc disease, stenosis, and tumors.