title: A vagabond pleural pebble.
abstract: This article concerns a case of an extremely mobile pulmonary opacity. This opacity was attributed to a free calcified mass in the pleural space. It is probably a small benign neoplasm whose peduncle underwent necrosis.
mesh_terms: D000368:Aged; D002114:Calcinosis / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D010994:Pleura / Q000000981:diagnostic imaging*; D011859:Radiography; D003074:Solitary Pulmonary Nodule / Q000000981:diagnostic imaging*