Disorders of Pain and Headache

The chapter begins with a discussion of the concept of neuropathic and nociceptive pain, its physiology, and its peripheral and central nervous system pathways. The chapter next discusses common major clinical features and mechanisms of damage. The chapter ends with a discussion of tension-type headache, migraine headache, and medication-overuse headache with attention to their pathophysiology, major clinical features, major laboratory findings, and principles of management and prognosis.