This book was born out of thirty years of didactic and practical experience with the intention of giving the reader concise neurosurgical elements and an appropriate selected iconography. This text wants to represent a practi cal and essential guide for the medical student and a useful reference point for specialists interested in pursuing more detailed literature studies. General practitioners and specialists in related subjects can consult this text to formulate a diagnosis and elaborate a proper therapy. November, 2000 The Authors Contents 1. CRANIAL DYSRAPHIAS. . . . . . . . . . . . . . ....