Hydatid disease of interatrial septum.
D002648:Child; D004443:Echinococcosis / Q000473:pathology*; D005260:Female; D006325:Heart Atria / Q000473:pathology; D006346:Heart Septum / Q000473:pathology*; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging; D011859:Radiography