Making a correct diagnosis is one of the key aspects of every medical student's and junior doctor's clinical training, and problem-based learning is now widely used to focus on the causes behind the presentation of a clinical feature. The Fourth Edition of this best-selling book is packed full of information to help the reader move from a presenting problem to an accurate diagnosis. Eighty photographs of key clinical presentations and investigations have been added to assist symptom recognition.//This Fourth Edition covers 125 common presenting problems in both medicine and surgery in a consistent format.//Each topic includes a list of all potential causes of the condition, color-coded to indicate common, occasional, or rare causes. Important geographical variations are also highlighted.//Two sections cover the differential diagnosis of biochemical and hematological disorders which provide a ready check when reviewing abnormal results//The text includes a targeted guide to the relevant general and specific follow-up investigations which should be carried out as appropriate.//Each topic ends with a box highlighting important learning points, or indicating symptom and signs suggestive of significant pathology which require urgent action.//By Andrew T Raftery, BSc MBChB(Hons) MD FRCS(Eng) FRCS(Ed), Clinical Anatomist; Formerly Consultant Surgeon, Sheffield Kidney Institute, Sheffield Teaching Hospitals NHS Foundation Trust, Northern General Hospital, Sheffield; Member (formerly Chairman), Court of Examiners, Royal College of Surgeons of England; Formerly Member of Panel of Examiners, Intercollegiate Specialty Board in General Surgery; Formerly Member of Council, Royal College of Surgeons of England; Formerly Honorary Clinical Senior Lecturer in Surgery, University of Sheffield, UK