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