pulmonary coin lesion (MONDO_0006931, a Monarch Disease Ontology identifier) can be described as follows. A single lung lesion that is characterized by a small round mass of tissue, usually less than 1 cm in diameter, and can be detected by chest radiography. A solitary pulmonary nodule can be associated with neoplasm, tuberculosis, cyst, or other anomalies in the lung, the chest wall, or the pleura. Also known as: coin lesion lung, coin lesion of lung, coin lesion of lung (context-dependent category), coin lesion of lung (finding).