Congenital pericardial defect with herniation of the left atrial appendage.
D000293:Adolescent; D003937:Diagnosis, Differential; D006325:Heart Atria; D006330:Heart Defects, Congenital / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D006547:Hernia / Q000150:complications / Q000151:congenital* / Q000209:etiology*; D059685:Herniorrhaphy; D006801:Humans; D007223:Infant; D008297:Male; D010496:Pericardium / Q000002:abnormalities* / Q000601:surgery; D011031:Pneumothorax, Artificial