title: Fetus-in-fetu: a case report with molecular analysis.
abstract: This is the report of a case of fetus-in-fetu diagnosed in a 3-month-old boy and found to be located in the upper retroperitoneum. The entity was distinguished from teratoma by the presence of vertebral axis with limb buds. It corresponded to a diamniotic, monochorionic, monozygotic twin. Complete excision of the mass was performed. Radiological, histopathologic, and DNA fingerprinting studies performed on fetus-in-fetu specimen showed that the fetus was a monozygotic twin.
authors.affiliation: Niloufer Hospital for Children and Institute of Child Health, Red Hills, Hyderabad, India.
authors.forename: A N
authors.initials: AN
authors.lastname: Kumar
authors.forename: G R
authors.initials: GR
authors.lastname: Chandak
authors.forename: A
authors.initials: A
authors.lastname: Rajasekhar
authors.forename: N C
authors.initials: NC
authors.lastname: Reddy
authors.forename: L
authors.initials: L
authors.lastname: Singh
mesh_terms: D016172:DNA Fingerprinting; D005333:Fetus / Q000002:abnormalities*; D006801:Humans; D007223:Infant; D008297:Male; D012187:Retroperitoneal Space; D014430:Twins, Monozygotic