SOLITARY PULMONARY LESION ('COIN LESION') ON CXR

commonest causes

bronchial carcinoma

metastasis (including lymphomas)

granulomas

tuberculoma

paraffinoma

sarcoidosis

amyloidosis

fungal infections

parasitic infections

connective tissue disease

rheumatoid arthritis nodule

Wegener's granulomatosis

other/miscellaneous causes

hamartoma or adenoma

arteriovenous malformation

haematoma

pulmonary infarction (usually wedge-shaped)

abscess, including amoeboma

bronchial cyst

sequestration

hydatid cyst (calcified)

intrapulmonary lymph node

impacted mucus or foreign body

extra pulmonary

skin lesions

chest wall lesions, eg. chondroma

interlobar fissures (encysted pleural effusion)

pleural lesions:

mesothelioma

pleural plaque

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