A rare, slow-growing tumor of blood vessels that forms in or under the skin anywhere on the body. Papillary intralymphatic angioendotheliomas may appear as firm, raised, purplish bumps, which may be small or large. They usually do not spread to other parts of the body. Papillary intralymphatic angioendotheliomas can occur in children and adults. They are a type of vascular tumor. Also called Dabska tumor.