title: Primary yolk sac tumor of the retroperitoneal region.
authors.affiliation: Department of Pediatric Oncology, Medical Faculty, Ondokuz Mayis University, Samsun, Turkey.
authors.forename: Elli
authors.initials: E
authors.lastname: Murat
authors.affiliation: Department of Pediatric Oncology, Medical Faculty, Ondokuz Mayis University, Samsun, Turkey.
authors.forename: Ayhan
authors.initials: A
authors.lastname: Dağdemir
authors.affiliation: Department of Pediatric Radiology, Medical Faculty, Ondokuz Mayis University, Samsun, Turkey.
authors.forename: Meltem Ceyhan
authors.initials: MC
authors.lastname: Bilgici
authors.affiliation: Department of Pathology, Medical Faculty, Ondokuz Mayis University, Samsun, Turkey.
authors.forename: Yurdanur
authors.initials: Y
authors.lastname: Süllü