Symptomatic Cysts of the Cavum Septi Pellucidi and Cavum Vergae: The Role of Endoscopic Neurosurgery in the Treatment of Four Consecutive Cases - Fratzoglou, M; Grunert, P; Leite dos Santos, A; Hwang, P; Fries, G (min - Minimally Invasive Neurosurgery, 2003)