title: Angiosarcoma of the right atrium with hemorrhagic pulmonary metastases and spontaneous pneumothorax.
mesh_terms: D000293:Adolescent; D001707:Biopsy, Needle; D006325:Heart Atria; D006338:Heart Neoplasms / Q000000981:diagnostic imaging*; D006394:Hemangiosarcoma / Q000000981:diagnostic imaging*; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging; D008297:Male; D009362:Neoplasm Metastasis; D011030:Pneumothorax / Q000000981:diagnostic imaging*; D013902:Radiography, Thoracic