Dermatopathology is a field of increasing importance for pathologists as well as dermatologists. This book introduces the principles of microscopic pathology of acquired skin diseases in a concise, yet comprehensive manner. The underlying mechanisms of the different diseases are discussed with reference to modern knowledge about immunology, molecular biology, and inflammatory response to infections and injury. It focuses on relevant processes in basic pathology in those skin diseases the practitioner is confronted with in his daily practice together with short clinical descriptions and case studies. The book is of interest to residents and practicing pathologists and dermatologists alike.