title: Primary metastasizing aortic endothelioma.
abstract: An instance of malignant endothelioma, primary in the aorta, metastasizing to intestine and bone, is reported. The aortic tumor was successfully resected. The unexpected finding of a large hepatic growth at autopsy raised the possibility that the aortic neoplasm was a metastasis. Histochemical, immunologic, and ultrastructural studies supported the diagnosis of an endothelial neoplasm. Although a number of malignant aortic and large vessel tumors have been reported, only four previous instances appear to be endotheliomatous.
mesh_terms: D000368:Aged; D001013:Aorta, Thoracic; D001018:Aortic Diseases / Q000473:pathology*; D001859:Bone Neoplasms / Q000556:secondary*; D006528:Carcinoma, Hepatocellular / Q000473:pathology; D006390:Hemangioendothelioma / Q000473:pathology*; D006801:Humans; D007078:Ileal Neoplasms / Q000556:secondary*; D008113:Liver Neoplasms / Q000473:pathology; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000473:pathology