Arranged alphabetically by symptom, this book helps readers identify each presentation, describes the different diagnoses that it could represent, and explains the tests used to make a diagnosis. Colour clinical photographs help with diagnoses at a glance. The book is completely revised - many sections are largely rewritten, new ones added, diagnostic methods updated, many old illustrations replaced and others inserted. The emphasis, however, remains the same: the importance of a careful history, detailed clinical examination and the judicious use of laboratory and imaging investigations in the elucidation of the correct diagnosis.