title: COMPUTED TOMOGRAPHIC FEATURES OF INCISOR PSEUDO-ODONTOMAS IN PRAIRIE DOGS (CYNOMYS LUDOVICIANUS).
abstract: Maxillary incisor pseudo-odontomas are common in pet prairie dogs and can cause progressive respiratory obstruction, while mandibular pseudo-odontomas are rarely clinically significant. The aim of this retrospective cross-sectional study was to describe CT features of maxillary and mandibular incisor pseudo-odontomas vs. normal incisors in a group of pet prairie dogs. All pet prairie dogs with head CT scans acquired during the period of 2013-2015 were included. A veterinary radiologist who was aware of final diagnosis reviewed CT scans and recorded qualitative features of affected and normal incisors. Mean density values for the pulp cavity and palatal and buccal dentin were also recorded. A total of 16 prairie dogs were sampled (12 normal maxillary incisors, 20 confirmed maxillary incisor pseudo-odontomas, 20 normal mandibular incisors, 12 presumed mandibular incisor pseudo-odontomas). Maxillary incisors with confirmed pseudo-odontomas had a significantly hyperattenuating pulp and dentin in the reserve crown and apical zone, when compared to normal maxillary incisors. Pseudo-odontomas appeared as enlargements of the apical zone with a globular/multilobular hyperattenuating mass formation haphazardly arranged, encroaching on midline and growing caudally and ventrally. Presumed mandibular incisor pseudo-odontomas had similar CT characteristics. In 60% of prairie dogs with maxillary incisor pseudo-odontomas, the hard palate was deformed and the mass bulged into the oral cavity causing loss of the palatine bone. The common nasal meatus was partially or totally obliterated in 81.8% of prairie dogs with maxillary pseudo-odontomas. Findings supported the use of CT for characterizing extent of involvement and surgical planning in prairie dogs with pseudo-odontomas.
authors.affiliation: Private Practice Clinica Veterinaria Belvedere, Via Bembo 10/12, 42100, Reggio Emilia, Italy.
authors.forename: Igor
authors.initials: I
authors.lastname: Pelizzone
authors.affiliation: Department of Veterinary Medical Science, University of Parma, Via del Taglio 10, 43100, Parma, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Di Ianni
authors.affiliation: Department of Veterinary Medical Science, University of Parma, Via del Taglio 10, 43100, Parma, Italy.
authors.forename: Antonella
authors.initials: A
authors.lastname: Volta
authors.affiliation: Department of Veterinary Medical Science, University of Parma, Via del Taglio 10, 43100, Parma, Italy.
authors.forename: Giacomo
authors.initials: G
authors.lastname: Gnudi
authors.affiliation: Department of Veterinary Medical Science, University of Parma, Via del Taglio 10, 43100, Parma, Italy.
authors.forename: Sabrina
authors.initials: S
authors.lastname: Manfredi
authors.affiliation: Department of Veterinary Medical Science, University of Parma, Via del Taglio 10, 43100, Parma, Italy.
authors.forename: Mara
authors.initials: M
authors.lastname: Bertocchi
authors.affiliation: Department of Veterinary Medical Science, University of Parma, Via del Taglio 10, 43100, Parma, Italy.
authors.forename: Enrico
authors.initials: E
authors.lastname: Parmigiani
mesh_terms: D000818:Animals; D003430:Cross-Sectional Studies; D005260:Female; D007180:Incisor / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D009810:Odontoma / Q000000981:diagnostic imaging / Q000662:veterinary*; D057805:Pets; D012189:Retrospective Studies; D012376:Rodent Diseases / Q000000981:diagnostic imaging*; D012589:Sciuridae; D014057:Tomography, X-Ray Computed / Q000662:veterinary
keywords: computed tomography; incisor teeth; prairie dog; pseudo-odontoma