title: Ocular squamous cell carcinoma in Simmental cattle in Zimbabwe.
abstract: In Zimbabwe, ocular squamous cell carcinoma (OSCC) was frequently observed in 5 breeding herds of Simmental cattle, a Bos taurus breed originating from Switzerland. In these herds, initial signs of OSCC were already noticeable in cattle about 3 years old. Gradually, OSCC prevalence increased, and 36 to 53% of cattle over 7 years old had 1 or more tumors. More tumors developed in Simmental cattle with periorbital white skin than in cattle with periorbital pigmented skin. Other breeds of cattle (eg, Friesian) also are partly white-faced and live in Zimbabwe in a comparable environment; yet, OSCC prevalence was lower in those breeds.
authors.affiliation: Department of Functional Morphology, Faculty of Veterinary Medicine, Utrecht University, The Netherlands.
authors.forename: W
authors.initials: W
authors.lastname: Den Otter
authors.forename: F W
authors.initials: FW
authors.lastname: Hill
authors.forename: W R
authors.initials: WR
authors.lastname: Klein
authors.forename: L A
authors.initials: LA
authors.lastname: Everse
authors.forename: E J
authors.initials: EJ
authors.lastname: Ruitenberg
authors.forename: L T
authors.initials: LT
authors.lastname: Van der Ven
authors.forename: J W
authors.initials: JW
authors.lastname: Koten
authors.forename: P A
authors.initials: PA
authors.lastname: Steerenberg
authors.forename: J A
authors.initials: JA
authors.lastname: Faber
authors.forename: V P
authors.initials: VP
authors.lastname: Rutten
mesh_terms: D000375:Aging; D000818:Animals; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology / Q000662:veterinary*; D002417:Cattle; D002418:Cattle Diseases; D005134:Eye Neoplasms / Q000453:epidemiology / Q000662:veterinary*; D005260:Female; D008297:Male; D016017:Odds Ratio; D013045:Species Specificity; D015030:Zimbabwe / Q000453:epidemiology