title: Intra-abdominal sacrococcygeal mature teratoma or fetus in fetu in a third-trimester fetus.
abstract: This case report describes a fetus with a large intra-abdominal, complex, vascular mass, displacing the normal intra-abdominal organs due to its large size. Extension to the presacral area was also identified, facilitating the diagnosis of a sacrococcygeal teratoma. Because of its highly mature nature, this was considered a fetus in fetu which was totally intra-abdominal.
authors.affiliation: Department of Obstetrics & Gynecology, Massachusetts General Hospital, Harvard Medical School, Boston, USA.
authors.forename: M L
authors.initials: ML
authors.lastname: Montgomery
authors.forename: C
authors.initials: C
authors.lastname: Lillehei
authors.forename: D
authors.initials: D
authors.lastname: Acker
authors.forename: B R
authors.initials: BR
authors.lastname: Benacerraf
mesh_terms: D000008:Abdominal Neoplasms / Q000000981:diagnostic imaging*; D000328:Adult; D005260:Female; D005333:Fetus / Q000002:abnormalities*; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D012445:Sacrococcygeal Region; D013724:Teratoma / Q000000981:diagnostic imaging*; D016216:Ultrasonography, Prenatal