title: Mature presacral sacrococcygeal teratoma associated with a sacral "epignathus".
abstract: We report an example of sacrococcygeal teratoma presenting as a "supernumerary limb" in the left gluteal area with a rudimentary hemipelvis, femur, tibia, fibula, and tarsal bones. This monocephalus tripus dibrachius-appearing complex with associated with a deep seated but separate pararectal mature teratoma. This combination of a well-developed external limb with a deep but separate teratoma has been described.
authors.affiliation: Department of Pathology, Hospital de Niños, LaPlata, República Argentina.
authors.forename: R M
authors.initials: RM
authors.lastname: Drut
authors.forename: R
authors.initials: R
authors.lastname: Drut
authors.forename: A
authors.initials: A
authors.lastname: Fontana
authors.forename: J J
authors.initials: JJ
authors.lastname: Grosso
mesh_terms: D001859:Bone Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D000013:Congenital Abnormalities / Q000175:diagnosis / Q000473:pathology*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis; D006801:Humans; D007231:Infant, Newborn; D007866:Leg / Q000002:abnormalities*; D010157:Palatal Neoplasms / Q000150:complications; D012445:Sacrococcygeal Region; D013724:Teratoma / Q000150:complications* / Q000175:diagnosis / Q000473:pathology