title: A giant congenital orbital tumor: an unusual presentation of retinoblastoma.
abstract: We report a case of an unusual giant congenital tumor presenting in a newborn infant as a large exophytic mass emerging from the left orbit. After enucleation orbital recurrence developed within 14 days. No anti-tumor treatment was given and the child died at the age of 4 weeks. The histopathological and cytogenetical analysis of the tumor is presented. The tumor was diagnosed as a retinoblastoma but we could not exclude the possibility of a neuroblastoma.
authors.affiliation: Department of Pediatrics, Free University Hospital, Amsterdam, Holland.
authors.forename: C M
authors.initials: CM
authors.lastname: Zwaan
authors.forename: F C
authors.initials: FC
authors.lastname: de Waal
authors.forename: F D
authors.initials: FD
authors.lastname: Koole
authors.forename: F H
authors.initials: FH
authors.lastname: Menko
authors.forename: P
authors.initials: P
authors.lastname: van der Valk
authors.forename: R M
authors.initials: RM
authors.lastname: Slater
authors.forename: H
authors.initials: H
authors.lastname: Scheffer
authors.forename: G
authors.initials: G
authors.lastname: van Waveren
authors.forename: A C
authors.initials: AC
authors.lastname: Moll
authors.forename: A Y
authors.initials: AY
authors.lastname: Schouten-van Meeteren
mesh_terms: D005134:Eye Neoplasms / Q000151:congenital* / Q000473:pathology; D006801:Humans; D007231:Infant, Newborn; D009361:Neoplasm Invasiveness; D009364:Neoplasm Recurrence, Local / Q000473:pathology; D009918:Orbital Neoplasms / Q000151:congenital* / Q000473:pathology; D012175:Retinoblastoma / Q000151:congenital* / Q000473:pathology