title: Squamous cell carcinoma arising in a hepatic forgut cyst.
abstract: We report the second case of squamous cell carcinoma arising in a hepatic foregut cyst (CHFC) in a 40-year-old woman. Microscopically, the lining of the cyst was composed of ciliated columnar epithelium, gastric and squamous epithelium. The squamous epithelium showed areas with dysplastic changes and other areas with carcinomatous transformation. In this congenital lesion, it was not surprising to find squamous and gastric mucosa because oesophagus, stomach, and tracheobronchic tree derive from the embryologic foregut. Squamous carcinoma might develop in a context of inflammation as in biliary cyst. In agreement with the first case described in the literature, this report also suggests that a large-sized symptomatic hepatic cyst should be excised.
authors.affiliation: Department of Pathology, Hôpital Pontchaillou, Rennes, France. anne-sophie.thirouard@chu-rennes.fr
authors.forename: Anne-Sophie
authors.initials: AS
authors.lastname: de Lajarte-Thirouard
authors.forename: Nathalie
authors.initials: N
authors.lastname: Rioux-Leclercq
authors.forename: Karim
authors.initials: K
authors.lastname: Boudjema
authors.forename: Yves
authors.initials: Y
authors.lastname: Gandon
authors.forename: Marie-Paule
authors.initials: MP
authors.lastname: Ramée
authors.forename: Bruno
authors.initials: B
authors.lastname: Turlin
mesh_terms: D000328:Adult; D002277:Carcinoma / Q000150:complications / Q000473:pathology* / Q000601:surgery; D002923:Cilia / Q000473:pathology; D003560:Cysts / Q000150:complications / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008099:Liver / Q000473:pathology / Q000601:surgery; D008107:Liver Diseases / Q000150:complications / Q000473:pathology / Q000601:surgery; D008113:Liver Neoplasms / Q000150:complications / Q000473:pathology* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D014057:Tomography, X-Ray Computed