Clinical signs and histologic findings in dogs with odontogenic cysts: 41 cases (1995-2010)

Frank J Verstraete, Bliss P. Zin, Philip H Kass, Darren P. Cox, Richard C. Jordan

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Abstract

Objective-To characterize clinical signs and histologic findings in dogs with odontogenic cysts and determine whether histologic findings were associated with clinical features. Design-Retrospective case series. Animals-41 dogs. Procedures-Medical records were reviewed to obtain clinical data, including breed, age, sex, and lesion location. Microscopic sections and results of diagnostic imaging were reviewed. Results-Odontogenic cysts were identified in 41 dogs between 1995 and 2010. There were 29 dogs with dentigerous cysts, 1 with a radicular cyst, 1 with a lateral periodontal cyst, and 1 with a gingival inclusion cyst. In addition, 9 dogs with odontogenic cysts that had clinical and histologic features suggestive of, but not diagnostic for, odontogenic keratocysts seen in people were identified. In all 9 dogs, these cysts were located in the maxilla and surrounded the roots of normally erupted teeth. Of the 29 dogs with dentigerous cysts, 23 had a single cyst, 5 had 2 cysts, and 1 had 3 cysts. Six cysts were associated with an unerupted canine tooth, and 30 were associated with an unerupted first premolar tooth (1 cyst was associated both with an unerupted canine tooth and with an unerupted first premolar tooth). Dentigerous cysts were identified in a variety of breeds, but several brachycephalic breeds were overrepresented, compared with the hospital population during the study period. Conclusions and Clinical Relevance-Results suggested that a variety of odontogenic cysts can occur in dogs. In addition, cysts that resembled odontogenic keratocysts reported in people were identified. We propose the term canine odontogenic parakeratinized cyst for this condition.

Original languageEnglish (US)
Pages (from-to)1470-1476
Number of pages7
JournalJournal of the American Veterinary Medical Association
Volume239
Issue number11
DOIs
StatePublished - Dec 2011

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Odontogenic Cysts
Cysts
Dogs
dogs
Dentigerous Cyst
Periodontal Cyst
Unerupted Tooth
teeth
Cuspid
Tooth
Bicuspid
Radicular Cyst
breeds
Maxilla
Diagnostic Imaging
Medical Records
Canidae
lesions (animal)

ASJC Scopus subject areas

  • veterinary(all)

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Clinical signs and histologic findings in dogs with odontogenic cysts : 41 cases (1995-2010). / Verstraete, Frank J; Zin, Bliss P.; Kass, Philip H; Cox, Darren P.; Jordan, Richard C.

In: Journal of the American Veterinary Medical Association, Vol. 239, No. 11, 12.2011, p. 1470-1476.

Research output: Contribution to journalArticle

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