Thoracic Key

Apical Cap Jud W. Gurney, MD, FACR DIFFERENTIAL DIAGNOSIS Common Normal Process of Aging Pancoast Tumor Less Common Radiation Fibrosis Pleural Effusion (Supine Position) Lipoma or Extrapleural Fat Rare but…

Air-Containing Mediastinal Mass Toms Franquet, MD, PhD DIFFERENTIAL DIAGNOSIS Common Hiatal Hernia Esophageal Diverticulum Zenker Diverticulum Less Common Achalasia Esophageal Perforation Mediastinal Abscess Rare but Important Bronchogenic Cyst Loculated Pneumomediastinum…

Interstitial Pattern, Pleural Thickening and Effusion Christopher M. Walker, MD DIFFERENTIAL DIAGNOSIS Common Pulmonary Edema Less Common Lymphangitic Carcinomatosis Asbestosis Systemic Lupus Erythematosus Rheumatoid Arthritis Rare but Important Lymphangiomyomatosis Diffuse…

Basilar Lung Zone Disease Distribution Jeffrey P. Kanne, MD DIFFERENTIAL DIAGNOSIS Common Idiopathic Pulmonary Fibrosis Nonspecific Interstitial Pneumonitis Aspiration Less Common Cryptogenic Organizing Pneumonia Asbestosis Rare but Important Alpha-1 Antiprotease…

Bilateral Mediastinal Mass Toms Franquet, MD, PhD DIFFERENTIAL DIAGNOSIS Common Mediastinal Lipomatosis Normal and Hyperplastic Thymus Thyroid Goiter Lymphoma Germ Cell Tumors Less Common Lymphangioma Extramedullary Hematopoiesis Rare but Important…

Interlobular Septal Thickening Jonathan H. Chung, MD DIFFERENTIAL DIAGNOSIS Common Cardiogenic Pulmonary Edema Lymphangitic Carcinomatosis Sarcoidosis Usual Interstitial Pneumonitis Less Common Pulmonary Vein Stenosis Pulmonary Alveolar Proteinosis Venoocclusive Disease Alveolar…

Pneumomediastinum Jonathan H. Chung, MD DIFFERENTIAL DIAGNOSIS Common True Pneumomediastinum Alveolar Rupture Tracheobronchial Injury Esophageal Injury Iatrogenic Injury Extension from Neck or Abdomen Mediastinitis (Rare) Medial Pneumothorax (Mimic) Mach Band…

Lymphatic Distribution, Centrilobular Nodules Eric J. Stern, MD DIFFERENTIAL DIAGNOSIS Common Sarcoidosis, Pulmonary Silicosis/Coal Worker’s Pneumoconiosis Lymphangitic Carcinomatosis Less Common Lymphoma, Non-Hodgkin or Hodgkin Bronchiolitis, Follicular Amyloidosis Berylliosis Rare but…

Filling Defect, Pulmonary Artery Jeffrey P. Kanne, MD DIFFERENTIAL DIAGNOSIS Common Pulmonary Emboli Less Common Tumor Embolism Rare but Important Abnormal Tubes and Catheters Pulmonary Artery Sarcoma Air Embolism ESSENTIAL…

Reticular Pattern Eric J. Stern, MD DIFFERENTIAL DIAGNOSIS Common Idiopathic Pulmonary Fibrosis (IPF) Pulmonary Edema Nonspecific Interstitial Pneumonitis (NSIP) Connective Tissue Diseases Scleroderma Rheumatoid Arthritis Sarcoidosis Asbestosis Less Common Chronic…