Case 1 Arterial Embolization with Cardiomegaly.- Case 2 A Man with Shortness of Breath, Weight Loss, and Night Sweats.- Case 3 Polyarticular Arthritis.- Case 4 Diabetes and Hypertension.- Case 5 Coronary Artery Disease and the Neglected Risk Factors.- Case 6 Fatal Prosthetic Valve Endocarditis with Acute Aortic Regurgitation.- Case 7 Arthralgias and Nasal Inflammation.- Case 8 Palpable Purpura and Hemorrhagic Bullae.- Case 9 Thyroid Nodules Following Neck Irradiation.- Case 10 Respiratory Failure.- Case 11 Calcium Oxalate Nephrolithiasis.- Case 12 Severe Lung Obstruction of Unknown Etiology.- Case 13 Orthostatic Hypotension.- Case 14 Lymphadenopathy in a 69-Year-Old Woman.- Case 15 Perioperative Management of Thromboembolism Prophylaxis.- Case 16 Osteoporosis in a 58-Year-Old Woman.- Case 17 Cardiac Transplantation.- Case 18 Progressive Dementia in a 73-Year-Old Woman.- Case 19 Diabetic Nephropathy.- Case 20 Cystic Renal Disease in an Elderly Man.- Case 21 A Clinicopathologic Conference: Jaundice and Severe Hypoxemia.