The skin exam / Rebecca Chibnall and Arthur Eisen -- Basic science of the skin / Karl Staser and Shadmehr Demehri -- Inflammatory disorders / Emily Beck and Sena Lee -- Infections and infestations / Heather Jones and Kara Sternhell-Blackwell -- Reactive disorders and drug eruptions / Shivani Tripathi and Milan Anadkat -- Disorders of pigmentation / Shaanan Shetty and Caroline Mann -- Benign skin lesions / Shayna Gordon and M. Laurin Council -- Malignant skin lesions / David Chen and Lynn Cornelius -- Disorders of the hair and nails / Katherine Moritz and Ann Martin -- Cutaneous manifestations of systemic disease / Urvi Patel and Amy Musiek -- Dermatologic surgery / Christopher Urban and Eva Hurst -- Pediatric dermatology / Kara Sternhell-Blackwell, Monique Kumar, and Susan Bayliss -- Geriatric dermatology / Kathleen Nemer and David Sheinbein -- Sun safety / Rachel Braden and Kimberly Brady -- Dermatologic therapies / Kyle Eash and Ian Hornstra -- Differential diagnoses appendices / Jamie Mull and M. Laurin Council.