1. Asthma vs. cellular (Chronic) bronchiolitis -- 2. Cellular (Chronic) bronchiolitis vs. follicular bronchiolitis -- 3. Follicular bronchiolitis vs. nodular lymphoid hyperplasia -- 4. Cellular (Chronic) bronchiolitis vs. diffuse panbronchiolitis -- 5. Cellular (Chronic) bronchiolitis vs. constrictive bronchiolitis -- 6. Constrictive bronchiolitis vs. organizing pneumonia -- 7. Diffuse alveolar damage vs. acute exacerbation of usual interstitial pneumonia -- 8. Diffuse alveolar damage vs. nonspecific interstitial pneumonia -- 9. Diffuse alveolar damage vs. organizing pneumonia -- 10. Diffuse alveolar damage vs. acute fibrinous and organizing pneumonia -- 11. Organizing pneumonia vs. usual interstitial pneumonia -- 12. Organizing pneumonia vs. chronic hypersensitivity pneumonia -- 13. Organizing pneumonia vs. chronic eosinophilic pneumonia -- 14. Usual interstitial pneumonia vs. fibrotic nonspecific interstitial pneumonia -- 15. Usual interstitial pneumonia vs. fibrotic phase of chronic hypersensitivity pneumonia -- 16. Usual interstitial pneumonia vs. pulmonary langerhans cell histiocytosis -- 17. Usual interstitial pneumonia vs. pleuroparenchymal fibroelastosis -- 18. Usual interstitial pneumonia vs. bronchiectasis with scarring -- 19. Usual interstitial pneumonia vs. end-stage honeycomb lung -- 20. Pleuroparenchymal fibroelastosis vs. apical cap -- 21. Cellular nonspecific interstitial pneumonia vs. lymphocytic interstitial pneumonia -- 22. Lymphocytic interstitial pneumonia vs. MALT lymphoma -- 23. MALT lymphoma vs. lymphangitic carcinoma -- 24. Nonspecific interstitial pneumonia vs. chronic hypersensitivity pneumonia -- 25. Chronic hypersensitivity pneumonia vs. aspiration pneumonia -- 26. Hypersensitivity pneumonia vs. hard metal pneumoconiosis -- 27. Hypersensitivity pneumonia vs. sarcoidosis -- 28. Sarcoidosis vs. erdheim–chester disease -- 29. Erdheim–chester disease vs. malakoplakia -- 30. Crystal-storing histiocytosis vs. malakoplakia -- 31. Erdheim–chester disease vs. pulmonary langerhans cell histiocytosis -- 32. Pulmonary langerhans cell histiocytosis vs. lymphangioleiomyomatosis -- 33. Pulmonary alveolar proteinosis vs. pulmonary edema -- 34. Centrilobular emphysema vs. panacinar emphysema -- 35. Respiratory bronchiolitis vs. respiratory bronchiolitis–associated interstitial lung disease -- 36. Respiratory bronchiolitis vs. aluminum pneumoconiosis -- 37. Respiratory bronchiolitis–associated interstitial lung disease vs. smoking-related interstitial fibrosis -- 38. Respiratory bronchiolitis–associated interstitial lung disease vs. desquamative interstitial pneumonia -- 39. Desquamative interstitial pneumonia vs. nonspecific interstitial pneumonia -- 40. Desquamative interstitial pneumonia vs. eosinophilic pneumonia -- 41. Desquamative interstitial pneumonia vs. pulmonary alveolar hemosiderosis -- 42. Diffuse alveolar hemorrhage vs. procedure-related hemorrhage -- 43. Granulomatosis with polyangiitis vs. eosinophilic granulomatosis with polyangiitis -- 44. Granulomatosis with polyangiitis vs. microscopic polyangiitis -- 45. Granulomatosis with polyangiitis vs. lymphomatoid granulomatosis -- 46. Granulomatosis with polyangiitis vs. necrotizing sarcoid granulomatosis -- 47. Granulomatosis with polyangiitis with bronchocentric pattern vs. bronchocentric granulomatosis -- 48. Granulomatosis with polyangiitis vs. mycobacteria infection -- 49. Granulomatosis with polyangiitis vs. rheumatoid nodule -- 50. Nodular silicosis vs. silicatosis -- 51. Amyloid nodule vs. pulmonary hyalinizing granuloma -- 52. Asbestosis vs. usual interstitial pneumonia/idiopathic pulmonary fibrosis -- 53. Anthracotic dust macules vs. coal workers’ pneumoconiosis -- 54. Bleomycin toxicity vs. amiodarone toxicity -- 55. Bleomycin toxicity vs. methotrexate toxicity -- 56. Pulmonary veno-occlusive disease vs. pulmonary capillary hemangiomatosis -- 57. Idiopathic pulmonary arterial hypertension vs. chronic thromboembolic pulmonary hypertension -- 58. Acute bacterial bronchopneumonia vs. viral pneumonia -- 59. Actinomycosis vs. nocardiosis -- 60. Aspergillosis vs. mucormycosis -- 61. Histoplasmosis vs. cryptococcosis -- 62. Blastomycosis vs. coccidioidomycosis -- 63. Pneumocystis jiroveci pneumonia vs. pulmonary edema -- 64. Mycobacterial pneumonia vs. sarcoidosis -- 65. Pulmonary infarct vs. necrotizing granuloma -- 66. Peribronchiolar metaplasia vs. nonmucinous adenocarcinoma in situ -- 67. Atypical adenomatous hyperplasia vs. nonmucinous adenocarcinoma in situ -- 68. Atypical adenomatous hyperplasia vs. micronodular type II pneumocyte hyperplasia -- 69. Meningothelial-like micronodules vs. carcinoid tumorlets -- 70. Typical carcinoid vs. atypical carcinoid -- 71. Atypical carcinoid vs. small cell lung carcinoma -- 72. Adenocarcinoma vs. squamous cell carcinoma -- 73. Adenocarcinoma vs. sclerosing pneumocytoma -- 74. Basaloid squamous cell carcinoma vs. small cell carcinoma -- 75. Large cell neuroendocrine carcinoma vs. small cell lung carcinoma -- 76. Large cell carcinoma vs. adenocarcinoma with solid growth pattern/solid adenocarcinoma -- 77. Epithelioid hemangioendothelioma vs. pulmonary hamartoma -- 78. Mucoepidermoid carcinoma vs. adenosquamous carcinoma -- 79. Adenoid cystic carcinoma vs. adenocarcinoma -- 80. Epithelioid malignant mesothelioma vs. benign reactive mesothelial hyperplasia -- 81. Sarcomatoid malignant mesothelioma vs. solitary fibrous tumor -- 82. Inflammatory myofibroblastic tumor vs. spindle cell carcinoma -- 83. Solitary fibrous tumor vs. monophasic synovial sarcoma

1. Lungs -- Pathophysiology
2. Lungs -- Diseases -- Diagnosis
3. Lung Diseases -- diagnosis
4. Lung Diseases -- pathology
5. Pulmonary Surgical Procedures -- methods
6. Diagnosis
7. Differential