Reversible right ventricular outflow tract compression by immunoblastic sarcoma.
D000328:Adult; D004452:Echocardiography; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000150:complications*; D008297:Male; D008479:Mediastinal Neoplasms / Q000150:complications*; D011666:Pulmonary Valve Stenosis / Q000209:etiology*