title: Bilateral maxillary periodontal ligament hamartoma in a dog.
abstract: A 12.5-year-old dog was presented for severe periodontal disease and bilateral maxillary enlargement. Radiographs of the maxilla showedgeneralized root resorption, ankylosis, and rarefaction of bone with focal radiodense areas. Surgical tooth extraction of multiple maxillary teeth and bilateral incisional biopsies of the periodontal tissue and maxilla in the region of the maxillary fourth premolars were performed. Histopathologic examination showed features typical of fully differentiated periodontal ligament with abundant cementum/alveolar lining bone and sparce odontogenic epithelial cell rests. Histopathology in conjunction with radiographic and clinical signs suggested a diagnosis of bilateral periodontal ligament hamartoma. Examination 3-months postoperatively indicated uncomplicated healing of the extraction and biopsy sites with no resolution of the maxillary enlargement.
authors.affiliation: Red Bank Veterinary Hospital, Tinton Falls, NJ 07724, USA. ktaney@sbcglobal.net
authors.forename: Kendall G
authors.initials: KG
authors.lastname: Taney
authors.forename: Richard R
authors.initials: RR
authors.lastname: Dubielzig
authors.forename: Thomas S
authors.initials: TS
authors.lastname: Trotter
authors.forename: Mark M
authors.initials: MM
authors.lastname: Smith
mesh_terms: D000818:Animals; D004283:Dog Diseases / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D004285:Dogs; D006222:Hamartoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D008297:Male; D010510:Periodontal Diseases / Q000175:diagnosis / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D010513:Periodontal Ligament / Q000473:pathology*; D020254:Tooth Ankylosis / Q000209:etiology / Q000473:pathology / Q000662:veterinary; D014091:Tooth Resorption / Q000209:etiology / Q000473:pathology / Q000662:veterinary; D016896:Treatment Outcome