May Be Caused by

Actinomycosis

Amebic abscess

Amyloidosis

Asbestosis

Blastomycosis

Bronchiolo-alveolar carcinoma

Bronchogenic carcinoma

Choriocarcinoma

Coal-worker pneumoconiosis

Coccidioidomycosis

Complicated hydatid cyst

Cryptococcosis

Histoplasmosis

Infected bulla

Infected cyst

Inflammatory pseudotumor

Intralobar pulmonary sequestration

Isoniazid cyst

Kaposi sarcoma

Lipoid pneumonia

Lung abscess

Lung hematoma

Lymphoma

Metastasis

Nocardiosis

Paragonimiasis

Pneumoconiosis with conglomerate mass

Postoperative scar

Pulmonary infarction

Radiation-treated carcinoma

Rheumatoid nodule

Round pneumonia

Rounded atelectasis

Sarcoidosis

Silicosis

Talcosis

Tuberculosis

Wegener granulomatosis