====== Amin Kassam ====== Amin Kassam, a neurosurgeon, and Ricardo L. Carrau and Carl Snyderman, otorhinolaryngologists from the University of [[Pittsburgh]] Medical Center, following the lead of Kaptain, et al., ((Kaptain GJ, Vincent DA, Sheehan JP, et al: Transsphenoidal approaches for the extracapsular resection of midline [[suprasellar]] and anterior cranial base lesions. Neurosurgery 49:94–100, 2001)) and Maroon, ((Maroon JC: Skull base surgery: past, present, and future trends. Neurosurg Focus 19(1):E1, 2005)) reported the use of the pure [[endonasal]] endoscopic technique for the treatment of various pathological conditions of the skull base, widening the concept of [[transsphenoidal surgery]]