Tumors involving peripheral nerves may be extremely challenging lesions to diagnose and treat. In order to optimize their management, physicians should have a thorough knowledge of peripheral nerve anatomy and pathology (both gross and microscopic), as well as familiarity with microsurgical techniques and intraoperative neurophysiological recording. This compendium deals with all aspects of tumors affecting peripheral nerves, from diagnosis to treatment; the topics it addresses range from epidemiology, anatomy, physiology, pathology, and clinical diagnosis to electrophysiology, imaging, genetic/cytomolecular aspects. Surgical approaches, biopsies and resection of various benign, malignant and pseudo-tumoral lesions, plexus tumors (both brachial and lumbosacral), and adjunctive treatment modalities and pain-related issues are described in detail. The book is intended not only for neurosurgeons, hand surgeons, plastic and orthopedic surgeons new to the field, but also for seasoned specialists who wish to update their knowledge with new insights based on robust experimental and clinical material. In addition, it will be a helpful tool for general and oncological surgeons who are sometimes faced with the treatment of mass lesions that may be potential nerve tumors, and for all practitioners who are engaged in the arduous struggle to bring relief to patients affected by these lesions.