A pragmatic approach to differential diagnosis provides rapid, reliable answers to key questions: Which diseases are likely? What causes them? What are the typical characteristics of these disorders? Do they correspond with the symptoms in question? How can the preliminary diagnosis be confirmed? Siegenthaler's new Differential Diagnosis in Internal Medicine guides the reader through the challenges of differential diagnosis across the spectrum of internal medicine. Practice-oriented learning includes identifying and understanding key symptoms, considering the whole patient in selecting possible diseases, evaluating, excluding, or confirming possible diagnoses, and making the correct diagnosis using an appropriate diagnostic procedure. Professor Walter Siegenthaler brings decades of international experience in clinical practice, teaching, and writing on internal medicine to this new book.