title: Cutaneous fibroma in a captive common snapping turtle (Chelydra serpentina).
abstract: An adult female common snapping turtle (Chelydra serpentina) had a mass on the plantar surface of the right forelimb that was removed surgically. Microscopical examination revealed many spindle cells with mild anisocytosis and anisokaryosis and a surrounding collagenous stroma. There were no mitoses. Immunohistochemistry showed that the spindle cells expressed vimentin, but not desmin. A diagnosis of cutaneous fibroma was made. Tumours are reported uncommonly in chelonian species. Cutaneous fibroma has been diagnosed in an alligator snapping turtle (Macrochelys temminckii), but not previously in a common snapping turtle.
authors.affiliation: Laboratory of Comparative Pathology of Wildlife-LAPCOM, Department of Pathology, Faculty of Veterinary Medicine and Zootechny, São Paulo University, 87 Prof. Dr. Orlando Marques de Paiva Avenue, 05508-270, Cidade Universitaria, São Paulo, Brazil. omaragv1@gmail.com
authors.forename: O
authors.initials: O
authors.lastname: Gonzales-Viera
authors.forename: G
authors.initials: G
authors.lastname: Bauer
authors.forename: A
authors.initials: A
authors.lastname: Bauer
authors.forename: L S
authors.initials: LS
authors.lastname: Aguiar
authors.forename: L T
authors.initials: LT
authors.lastname: Brito
authors.forename: J L
authors.initials: JL
authors.lastname: Catão-Dias
mesh_terms: D000818:Animals; D014408:Biomarkers, Tumor / Q000378:metabolism; D005260:Female; D005350:Fibroma / Q000378:metabolism / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D005552:Forelimb; D012878:Skin Neoplasms / Q000378:metabolism / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D016896:Treatment Outcome; D014426:Turtles; D014746:Vimentin / Q000378:metabolism
chemical_list: D014408:Biomarkers, Tumor; D014746:Vimentin