Congenital respiratory cyst. RPC from the AFIP.
The radiologic finding of a thin-walled cystic structure in the lung should raise the question of a possible congenital respiratory cyst. This is often a difficult diagnosis to confirm, and the presence of radiologic findings such as loculation of the cyst, ill-defined or shaggy borders, interstitial reticulations, or pleural thickening should all be considered suggestive of postinflammatory processes such as abscess, cystic bronchiectasis, or even tuberculosis. A history of previous pneumonia should also be considered evidence to question the diagnosis of congenital respiratory cyst and suggest the possibility of a pneumatocele.
D000328:Adult; D001987:Bronchiectasis / Q000000981:diagnostic imaging; D003560:Cysts / Q000151:congenital* / Q000000981:diagnostic imaging / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008169:Lung Abscess / Q000000981:diagnostic imaging; D008171:Lung Diseases / Q000151:congenital* / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography