Thoracic splenosis.
D000328:Adult; D002828:Choristoma / Q000000981:diagnostic imaging*; D005260:Female; D006338:Heart Neoplasms / Q000000981:diagnostic imaging*; D006801:Humans; D010496:Pericardium / Q000000981:diagnostic imaging; D010997:Pleural Neoplasms / Q000000981:diagnostic imaging*; D011859:Radiography; D013154:Spleen