title: Fetus in fetu.
abstract: Fetus in fetu occurs due to aberration of monozygotic twinning. A 16-year-old boy presented with abdominal pain and mass. Laparotomy revealed an anencephalic fetus within an encapsulated retroperitoneal mass. Pathologic examination confirmed rib formation with a primitive vertebral column with bone marrow. There was no other organogenesis.
authors.affiliation: Department of Gastrointestinal Surgery, Seth G S Medical College, Mumbai.
authors.forename: V
authors.initials: V
authors.lastname: Sequira
authors.forename: P
authors.initials: P
authors.lastname: Rao
authors.forename: K
authors.initials: K
authors.lastname: Moorthy
authors.forename: A
authors.initials: A
authors.lastname: Deshpande
authors.forename: A
authors.initials: A
authors.lastname: Supe
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D005333:Fetus / Q000002:abnormalities*; D006801:Humans; D008297:Male; D011860:Radiography, Abdominal; D012187:Retroperitoneal Space / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014430:Twins, Monozygotic