1. Department of Veterinary Surgery and Anesthesiology (Pizzigatti) and Department of Diagnostic Imaging (Müller), School of Veterinary Medicine and Animal Science-FMVZ, São Paulo State University-UNESP, Rubião Júnior District, Botucatu, São Paulo, Brazil; Department of Veterinary Clinics (Martins, Curcio, de Nogueira, Esteves), School of Veterinary, UFPel, Pelotas, Rio Grande do Sul, Brazil; and, Department of Surgery (Batista) UFLA, Lavras, Minas Gerais, Brazil