Synonyms

Lung lesion smaller than 4 cm

May Be Caused by

 Common

Bronchiolo-alveolar carcinoma

Bronchogenic carcinoma

Carcinoid

Hamartoma

Histoplasmosis

Metastasis

Postinflammatory scar

Round pneumonia

Tuberculoma

 Uncommon

Amyloidoma

Anomalous pulmonary vein

Arteriovenous malformation

Asbestosis

Aspergilloma

Benign lung neoplasm

Castleman disease

Coal-worker pneumoconiosis

Dirofilaria immitis

Fluid-filled bronchial cyst

Fluid-filled bronchiectatic cyst

Fluid-filled bulla

Granuloma

Gumma

Hematoma

Hydatid cyst

Inflammatory pseudotumor

Intralobar pulmonary sequestration

Intrapulmonary lymph node

Leiomyosarcoma

Lipoid pneumonia

Lung abscess

Lymphoma

Mucocele

Mucoid impaction

Mucus plug

Mycetoma

Normal pulmonary blood vessel

Organized pneumonia

Paragonimiasis

Parasitic disease

Pneumoconiosis

Pulmonary artery aneurysm

Pulmonary blastoma

Pulmonary infarction

Pulmonary plasmacytoma

Pulmonary varix

Rhabdomyosarcoma

Rheumatoid nodule

Rounded atelectasis

Sarcoidosis

Silicosis

Spindle cell tumor

Talcosis

Wegener granulomatosis

 Rare

Coccidioidomycosis