protocols are presented for emergencies associated with disease, infection, and trauma – and complications such as status epilepticus and acute shunt malfunction. Injury classification, evaluation, clinical presentation, imaging, surgical indications, approaches, and prognosis are presented for each condition. Concise, evidence-based descriptions enable readers to rapidly gain a solid understanding of the pathogenesis of each problem. The authors retained the scope and content of previous editions and added six new chapters that reflect recent advances.