This atlas comprises 80 illustrative cases designed to assist the clinician caring for patients with neurologic symptoms. The majority of the images shown are magnetic resonance imaging (MRI) scans; other techniques illustrated include magnetic resonance (MR) and conventional angiography and computed tomography (CT) scans. Many different categories of neurologic disease are illustrated, including numerous examples of ischemic, inflammatory, inherited, vascular, and neoplastic etiologies. An introduction to the use of neuroimaging in neurologic disorders is presented in Chap. 416, and many other illustrative examples of neuroimaging findings appear throughout Harrison’s.