title: Congenital hemangiopericytoma of duodenum.
abstract: Hemangiopericytoma has never previously been reported as a cause of hematemesis in the newborn. We now report one such case.
mesh_terms: D004379:Duodenal Neoplasms / Q000151:congenital* / Q000473:pathology / Q000601:surgery; D006393:Hemangiopericytoma / Q000151:congenital* / Q000473:pathology / Q000601:surgery; D006801:Humans; D007231:Infant, Newborn; D008297:Male