Essential Illustrated Neurosurgery

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...1 Arnold-Chiari malformation...1 Dandy-Walker malformation ...3 Encephalocele ...4 Cranial dermic sinus ...7 Corpus callosum agenesis ...8 2. BRAIN TUMORS...9 Epidemiology ...9 Symptoms and signs...10 Intracranial hypertension...10 Focal symptoms and signs...13 Epilepsy ...13 Language disorders ...16 Optic pathways disorders ...17 Apraxias...19 Psychic disorders ...21 Cerebellar syndrome ...22 Frontal lobe tumors ...22 Parietal lobe tumors ...23 Temporal lobe tumors ...23 Occipital lobe tumors ...24 Posterior cranial fossa tumors...25 Cerebellar tumors...25 Fourth ventricle tumors...26 Ponto-cerebellar angle tumors...2 6 VIII Contents Brainstem tumors...27 Clivus tumors...27 Tumors of the cerebral ventricles...28 Tumors of the lateral ventricles ...28 Third ventricle tumors...28 Fourth ventricle tumors...29 Pineal region tumors ...29 Sellar and parasellar region tumors ...30 Anatomopathological classification ...31 Benign cerebral tumors ...31 Leptomeningeal tumors ...31 Nerve sheath tumors ...36 Vascular tumors ...38 Dysembryogenetic tumors...39 Mixed cerebral tumors...44 Malignant cerebral tumors ...44 Therapy...54 Pseudo tumor cerebri ...56 Phacomatosis ...56 3. INTRACRANIAL ANEURySMS...S9 Epidemiology ...