May Be Caused by

 Common

Atypical mycobacterial infection

Blebs

Bronchiectasis

Bullae

Coccidioidomycosis

Fungal disease

Honeycomb lung

Necrotic metastases

Opportunistic lung infection

Pneumatoceles

Pneumocystis carinii pneumonia

Pseudomonas

Pulmonary infarction

Septic emboli

Tuberculosis

 Uncommon

Amyloidosis

Coal-worker pneumoconiosis

Cystic adenomatoid malformation

Granulomas

Hydatid cysts

Langerhans cell histiocytosis

Lymphoma

Lymphomatoid granulomatosis

Melioidosis

Papillomatosis

Paragonimiasis

Pneumoconiosis

Primary multicentric lung carcinoma

Progressive massive fibrosis

Pulmonary angiitis and granulomatosis

Pulmonary lymphangioleiomyomatosis

Rheumatoid nodules

Sarcoidosis

Silicosis

Staphylococcal abscesses

Tuberous sclerosis

Wegener granulomatosis