Diagnostic Imaging in Veterinary Dental Practice

Babbitt, Sam G.; Volker, Mary Krakowski; Luskin, Ira R.

doi:10.2460/javma.248.11.1241

Cited by 1 publication

(1 citation statement)

References 3 publications

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“…To our knowledge, three keratin-filled odontogenic cysts have been reported in dogs, 6,7 two of which were diagnosed as an odontogenic keratocyst 6,7 and one as a keratizing odontogenic cyst. 8 Previous studies have questioned whether such cysts in dogs are truly analogous to the odontogenic keratocyst of humans, 2 although no case series has specifically examined keratinizing odontogenic cysts in dogs.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Classification of Keratinized Odontogenic Cysts in 29 Dogs

Johnson

Scott²,

Bell

2022

J Vet Dent

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This retrospective case series presents a unique group of odontogenic cysts that are lined by heavily keratinized epithelium and contain laminated keratin. Keratinized odontogenic cyst (KOC) is proposed as appropriate terminology for the described lesions. The series evaluates cysts from 29 dogs, including clinical presentation, diagnostic imaging, and histopathology. All 29 lesions occurred in tooth bearing regions of the jaws; 21 were maxillary and 8 were mandibular. These keratinized odontogenic cysts were unilocular or multilocular, and some demonstrated considerable expansion resulting in bone destruction. In 13 of 29 cases, there was evidence of tooth displacement associated with the expansion of the KOC. The KOCs did not have a distinctive radiographic appearance. 48% of the cysts had a soft tissue defect through which the keratin contents could be visualized. Cyst contents ranged from hard mineralized keratin to fluid consistency with soft flecks of keratin. The pathoetiology of KOCs is unknown; however, the biological behavior is benign and thought to be slowly progressive despite potential for locally destructive growth. Recurrence is uncommon when cyst enucleation and debridement are aggressive or when solid cysts are excised en bloc.

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