Ricchetti, Tommaso A case of metastatic epithelioid angiosarcoma in the lamina propria of a sigmoid tubulovillous adenoma. [electronic resource] - Tumori - 210-2 p. digital Publication Type: Case Reports; Journal Article ISSN: 0300-8916 Standard No.: 10.1177/030089160509100222 doi Subjects--Topical Terms: Adenoma--metabolismBasement Membrane--metabolismEpithelioid Cells--metabolismHemangiosarcoma--metabolismHumansMaleMiddle AgedPlatelet Endothelial Cell Adhesion Molecule-1--metabolismSigmoid Neoplasms--metabolism