title: A distinctive epitheliomesenchymal biphasic tumor in the duodenum: the first case of duodenoblastoma?
abstract: Epitheliomesenchymal biphasic neoplasms are extremely rare in the duodenum, and most of these are carcinosarcomas. Miettinen et al. (Am J Surg Pathol 33:1370-7, 2009) recently reported three cases of a novel distinctive epitheliomesenchymal biphasic tumor of the stomach in young adults. In view of the resemblance to other childhood blastomas, they proposed to refer to this entity as a gastroblastoma. Since none of the components were sufficiently atypical, the gastroblastoma seemed more comparable to this kind of tumor than carcinosarcomas or other aggressive and malignant biphasic tumors. This report describes a duodenal location of a similar epitheliomesenchymal biphasic tumor in a 22-year-old woman. To our knowledge, this is the first reported case occurring primarily in the duodenum and might be the first case of "duodenoblastoma."
authors.affiliation: Department of Biopathology, Paoli Calmettes Institut, 232 Bd Sainte Marguerite, 13009 Marseille, France. poizatf@marseille.fnclcc.fr
authors.forename: F
authors.initials: F
authors.lastname: Poizat
authors.forename: C
authors.initials: C
authors.lastname: de Chaisemartin
authors.forename: E
authors.initials: E
authors.lastname: Bories
authors.forename: J R
authors.initials: JR
authors.lastname: Delpero
authors.forename: L
authors.initials: L
authors.lastname: Xerri
authors.forename: J F
authors.initials: JF
authors.lastname: Flejou
authors.forename: G
authors.initials: G
authors.lastname: Monges
mesh_terms: D013505:Digestive System Surgical Procedures / Q000379:methods; D004379:Duodenal Neoplasms / Q000145:classification* / Q000473:pathology* / Q000601:surgery; D004386:Duodenum / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D004848:Epithelium / Q000473:pathology*; D005260:Female; D006801:Humans; D008648:Mesoderm / Q000473:pathology*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D055815:Young Adult