Book excerpt: This landmark text is dedicated to the conversation had between a primary care physician and a dermatologist that is a true reflection of the way medicine works when these physicians collaborate on the same case. The book uses actual case studies from the authors' offices and provides an accurate and real portrayal of the types of skin conditions primary care physicians encounter. Answering questions such as when to treat, how to treat, when to refer, when to biopsy, and when to reassure, this book informs and educates primary care physicians with a dermatologist’s perspective. Top 50 Dermatology Case Studies for Primary Care ​gives the reader an entirely new vantage point from which to view dermatologic cases, and together with one of New York City's top dermatologists, the authors look at the same case, the same patient, and compare what each did or would have done. Written for family medicine and internal medicine physicians, residents and providers, Top 50 Dermatology Case Studies for Primary Care proves to be an invaluable resource in their day-to-day practices.