title: Huge retroperitoneal complicated pseudotumour in haemophilia B with inhibitor.
authors.affiliation: Division of Pediatric Hematology and Oncology, Department of Pediatrics, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea.|Department of Pediatric Hemato-Oncology, Yonsei Cancer Center, Yonsei University Health System, Seoul, Korea.
authors.forename: S Y
authors.initials: SY
authors.lastname: Hahn
authors.affiliation: Division of Pediatric Hematology and Oncology, Department of Pediatrics, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea.|Department of Pediatric Hemato-Oncology, Yonsei Cancer Center, Yonsei University Health System, Seoul, Korea.
authors.forename: S M
authors.initials: SM
authors.lastname: Hahn
authors.affiliation: Division of Pediatric Hematology and Oncology, Department of Pediatrics, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea.|Department of Pediatric Hemato-Oncology, Yonsei Cancer Center, Yonsei University Health System, Seoul, Korea.
authors.forename: S L
authors.initials: SL
authors.lastname: Jin
authors.affiliation: Division of Pediatric Hematology and Oncology, Department of Pediatrics, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea.|Department of Pediatric Hemato-Oncology, Yonsei Cancer Center, Yonsei University Health System, Seoul, Korea.
authors.forename: H S
authors.initials: HS
authors.lastname: Kim
authors.affiliation: Division of Pediatric Hematology and Oncology, Department of Pediatrics, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea.|Department of Pediatric Hemato-Oncology, Yonsei Cancer Center, Yonsei University Health System, Seoul, Korea.
authors.forename: C J
authors.initials: CJ
authors.lastname: Lyu
authors.affiliation: Department of Surgery, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea.
authors.forename: J G
authors.initials: JG
authors.lastname: Lee
authors.affiliation: Division of Pediatric Hematology and Oncology, Department of Pediatrics, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea.|Department of Pediatric Hemato-Oncology, Yonsei Cancer Center, Yonsei University Health System, Seoul, Korea.
authors.forename: J W
authors.initials: JW
authors.lastname: Han
mesh_terms: D000005:Abdomen; D000328:Adult; D005164:Factor IX / Q000276:immunology; D006406:Hematoma / Q000150:complications* / Q000175:diagnosis / Q000628:therapy; D002836:Hemophilia B / Q000150:complications* / Q000276:immunology*; D006801:Humans; D008297:Male
chemical_list: D005164:Factor IX