Burkitt's lymphoma presenting with heart block.
D002051:Burkitt Lymphoma / Q000150:complications / Q000473:pathology; D002648:Child; D004562:Electrocardiography; D006327:Heart Block / Q000209:etiology*; D006329:Heart Conduction System / Q000473:pathology; D006338:Heart Neoplasms / Q000473:pathology; D006801:Humans; D008297:Male