Compound maxillary odontoma in a young German shepherd dog

Abstract

A three-month-old, male German shepherd dog was admitted with a facial mass of two months' duration. Clinical examination showed a round mass, 3 cm in diameter, in the left infraorbital area. The upper last premolar deciduous tooth was not erupted. No other abnormalities were detected. Radiological examination revealed a posterior maxillary mass of mixed opacity. The mass was surgically excised. Histopathological examination demonstrated a connective tissue stroma containing foci of irregular enamel and dentine, resembling rudimentary teeth (denticles), surrounded by new bone formation. Morphology and structure of the denticles were also confirmed by scanning electron microscopy. A compound odontoma was diagnosed. One year after surgery, the dog was free of clinical signs.

Computed Tomographic Characteristics of Odontogenic Neoplasms in Dogs

“…Although common imaging characteristics for all mass types were identified, individual tumor types of this sample group had more specific imaging findings. Previously reported information on the imaging characteristics of canine odontogenic tumors is limited primarily to case or case series reports and brief textbook descriptions . To the authors’ knowledge, a blinded study of the imaging characteristics of these tumors incorporating a board‐certified veterinary radiologist has not been previously performed.…”

“…There was only one compound odontoma in this study and it contained hyperattenuating tooth‐like material with areas suggestive of enamel. The radiographic characteristics of canine compound odontomas have been extensively described in multiple case reports and case series and mass associated tooth‐like material is a trademark Roentgen sign of these tumors . These masses are also often associated with impacted or unerupted teeth and mass‐associated cyst‐like structures have been described …”

Odontoma-like Tumours of Squirrel Elodont Incisors—Elodontomas

“…In the case of odontomas, the tumour may consist of either multiple, small tooth-like structures (compound odontoma) or a conglomerate mass of odontogenic hard and soft tissue (complex odontoma) (Neville et al, 2002;Head et al, 2003). Odontomas have been diagnosed in mice (Ida-Yonemochi et al, 2002), dogs (Eickhoff et al, 2002;Felizzola et al, 2003;Papadimitriou et al, 2005), prairie dogs (Phalen et al, 2000), horses (DeBowes and Gaughan, 1998), cows (Tetens et al, 1995) and in an elephant (Raubenheimer et al, 1989). The so-called "odontogenic dysplasia in ageing rodents and lagomorphs" is defined as the disorganized development of the continuously erupting incisor teeth of rodents and lagomorphs, due to inflammation, trauma, toxicosis or age (Head et al, 2003).…”

Mandibulair samengesteld odontoom bij een jonge bordercollie

“…Naast een gelijkaardig klinisch voorkomen kunnen odontogene tumoren en cysten ook gelijkenissen vertonen op radiografieën. Differentiatie gebeurt dan door middel van biopsie gevolgd door histopathologie (Papadimitriou et al, 2005;Meyers et al, 2007).…”

“…De tandachtige, radiopake structuurtjes zijn namelijk pathognomonisch voor het letsel (Hale, 2005;Arzi en Verstraete, 2012). Deze "denticles" worden echter niet in alle gevallen waargenomen (Papadimitriou et al, 2005).…”