title: Hemangiopericytoma in infants and children.
mesh_terms: D002648:Child; D002675:Child, Preschool; D005121:Extremities; D006258:Head and Neck Neoplasms / Q000151:congenital / Q000473:pathology / Q000628:therapy*; D006393:Hemangiopericytoma / Q000151:congenital / Q000473:pathology / Q000628:therapy*; D006801:Humans; D007223:Infant; D008297:Male