Also the 3rd edition of "Dermatology" covers all the classical and related fields of dermatology, providing a wealth of information on diagnostic methods, clinical features, pathophysiology, and differential diagnosis. About 950 excellent photos and diagrams help the reader become acquainted with the immense variety of dermatological diseases. The contents of all chapters have been updated. New chapters have been included covering numerous subjects, e.g. dermatopathology, sonography, disorders of chromosomal instability and defective DNA repair, aging skin, sport dermatology, aesthetic therapy. The book is a must for every doctor confronted with dermatological problems.