Myxoma of the pulmonary valve causing severe pulmonic stenosis in infancy.
D006338:Heart Neoplasms / Q000150:complications*; D006801:Humans; D007223:Infant; D008297:Male; D009232:Myxoma / Q000150:complications*; D011664:Pulmonary Valve; D011666:Pulmonary Valve Stenosis / Q000209:etiology*