title: Intraosseus teratoma of the iliac bone.
abstract: We present a 4-year-old child with a large iliac bone mass incidentally discovered in a plain abdominal radiograph. The pathological examination revealed a benign mature teratoma. To the best of our knowledge, the occurrence of intraosseous mature teratoma has not been previously reported. The child had had an immature teratoma of the neck discovered in a fetal ultrasound, and resected on day 6 of life. The neck teratoma recurred twice, at 16 months and at 3.5 years of age. In these two recurrences the lesion appeared progressively more mature. At the time of discovery of the iliac bone teratoma there was no evidence of residual neck disease. The radiological and pathological characteristics, differential diagnosis, and clinical course are discussed.
authors.affiliation: Department of Radiology, Children's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.
authors.forename: J L
authors.initials: JL
authors.lastname: Vazquez
authors.forename: D
authors.initials: D
authors.lastname: Jaramillo
authors.forename: M C
authors.initials: MC
authors.lastname: Gebhardt
authors.forename: A R
authors.initials: AR
authors.lastname: Perez-Atayde
mesh_terms: D000367:Age Factors; D001706:Biopsy; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D002675:Child, Preschool; D006258:Head and Neck Neoplasms / Q000151:congenital / Q000473:pathology / Q000601:surgery; D006801:Humans; D007085:Ilium / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008297:Male; D009364:Neoplasm Recurrence, Local; D009378:Neoplasms, Multiple Primary / Q000473:pathology; D011860:Radiography, Abdominal; D013724:Teratoma / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed