Large anomalous fibrous sac in the right side of the heart.
D000328:Adult; D003937:Diagnosis, Differential; D004437:Ebstein Anomaly / Q000175:diagnosis; D006325:Heart Atria / Q000473:pathology; D006344:Heart Septal Defects, Atrial / Q000150:complications / Q000473:pathology*; D006352:Heart Ventricles / Q000002:abnormalities; D006801:Humans; D008297:Male; D009929:Organ Size; D011651:Pulmonary Artery / Q000002:abnormalities