Odontogenic Cysts in Three Dogs: One Odontogenic Keratocyst and Two Dentigerous Cysts

Watanabe, Kazuhiro; Kadosawa, Tsuyoshi; Ishiguro, Tetsuro; Takagi, Satoshi; Ochiai, Kenji; Kimura, Takashi; Okumura, Masahiro; Fujinaga, Toru

doi:10.1292/jvms.66.1167

Cited by 22 publications

(24 citation statements)

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“…Surgery is the treatment of choice for a periorbital cyst. Either marsupialisation or enucleation is performed, depending on various factors-the size of the cyst, its status(unilocular or multilocular), and anatomical structures that are adjacent to the cysts [1,6].Computed tomography (CT) is one of the useful modalities for evaluating lesions in the human orofacial area [1]. However, to our knowledge, CT imaging of canine orofacial cysts has not yet been reported.…”

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Periorbital Cyst with Bone Defect in a Dog

Ito

Asano

Urano³

et al. 2006

The Journal of Veterinary Medical Science

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ABSTRACT. A 4-year-old female Miniature Dachshund was referred with a chief complaint of right periorbital swelling that had not responded to antibiotic therapy. Ultrasonography and fine-needle aspiration revealed that the periorbital lesion had a cystic structure without any inflammatory or neoplastic cells. Computed tomography (CT) showed that the cyst occupied a defect in the periorbital maxillary, lacrimal, and frontal bones and had invaded the nasal cavity. The lesion was histologically suspected by incisional biopsy as an epithelial cyst. KEY WORDS: canine, computed tomography, periorbital cyst.J. Vet. Med. Sci. 68 (7): [747][748] 2006 A few reports have described cystic lesions around the eye or in the maxilla [2][3][4][5]. Surgery is the treatment of choice for a periorbital cyst. Either marsupialisation or enucleation is performed, depending on various factors-the size of the cyst, its status(unilocular or multilocular), and anatomical structures that are adjacent to the cysts [1,6].Computed tomography (CT) is one of the useful modalities for evaluating lesions in the human orofacial area [1]. However, to our knowledge, CT imaging of canine orofacial cysts has not yet been reported. Therefore, in the present case, we utilized CT imaging to identify the morphological characterization of the cyst.A 4-year-old, female Miniature Dachshund was referred to the Animal Medical Center of Nihon University with a chief complaint of right periorbital swelling. A swelling of the medial lower lid of the right eye had been observed for 2 months. An ophthalmic examination, including a fluorescein dye passage test, no abnormalities. The swelling had recurred despite antibiotic therapy and intermittent fine needle aspiration of the periorbital cyst.On physical examination, a fluctuant swelling with a diameter of 2 cm was palpated in the medial canthus and medial lower lid of the right eye. Ultrasonography revealed that the swelling had an echolucent cystic structure. Sterile serosanguineous fluid was derived from the cyst by fineneedle aspiration. Cytological examination did not provide any evidence for a significant inflammatory process or neoplastic cell infiltration. CT was designed to clarify the morphological structure of the cyst.Under general anesthesia, CT was performed by CT-W450-10A (Hitach Medical Co., Tokyo) with the following scan parameters: 50 mA, 120 kVp, 4.5 s scan, 2-mm continuous slices, and 512 × 512 matrix size. CT imaging revealed a circumscribed and smooth cystic structure (Fig. 1). The cyst had expanded primarily within the right orbital region, invading the nasal cavity and cribriform plate. A periosteal reaction was not observed around the lesion, and the internasal septum, palatine bone, and teeth that were adjacent to the cyst were intact. The subsequent contrast CT * CORRESPONDENCE TO: ASANO, K., Laboratory of Veterinary Surgery, Department of Veterinary Medicine, College of Bioresource Sciences Nihon University, 1866 Kameino, Fujisawa 252-8510, Japan. Fig. 1. Transverse CT imaging at the...

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Periorbital Cyst with Bone Defect in a Dog

Ito

Asano

Urano³

et al. 2006

The Journal of Veterinary Medical Science

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“…On the basis of our personal experience as well as published data (Watanabe et al 2004) it is possible to consider the OMS's classification of mandibular cysts in humans as also reliable for veterinary medicine. The high percentage of relapses with this disease make it necessary to excise the cysts completely (Baxter 2004;Watanabe et al 2004;Lemmons et al 2006).…”

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“…Odontogenic cysts are not well documented in small animals. In dogs, dentigerous cysts, as well as the more common odontogenic cysts, are underreported because they often cause no clinical signs apart from tooth loss (Okuda 2001;Baxter 2004;Watanabe et al 2004;Lemmons et al 2006). The vast majority of cases of dentigerous cysts described in the literature in dogs are in small breeds, particularly brachycephalic breeds.…”

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A case of a mandibular dentigerous cyst in a german shepherd dog

et al. 2008

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“…1 Types of odontogenic cysts reported in dogs include radicular cysts, dentigerous cysts, and keratocysts. 2,4,8,10,12 In contrast to other odontogenic cysts, radicular cysts are associated with an inflammatory infiltrate. 6 They are also very often found in association with a devitalized tooth.…”

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Extensive Bilateral Odontogenic Cysts in the Mandible of a Dog

et al. 2008

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Abstract.A 5-year-old female neutered Boxer dog was diagnosed with extensive odontogenic cysts that affected the left and right mandibles. Rostral mandibular swelling was detectable clinically, and bilateral cystic mandibular lesions were identified radiographically. The dog's owners elected for euthanasia. A full postmortem was performed. Cystic cavities were confirmed in the body of each mandible, extending from the incisor teeth to the mid premolar region. Incisor, canine, and premolar tooth roots indented each cavity. Histologic examination of the cystic cavities reflected an inner lining of attenuated stratified squamous epithelium overlying a fibrous layer infiltrated by a mixed, predominantly mononuclear, inflammatory infiltrate.

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Odontogenic Cysts in Three Dogs: One Odontogenic Keratocyst and Two Dentigerous Cysts

Cited by 22 publications

References 7 publications

Periorbital Cyst with Bone Defect in a Dog

Periorbital Cyst with Bone Defect in a Dog

A case of a mandibular dentigerous cyst in a german shepherd dog

Extensive Bilateral Odontogenic Cysts in the Mandible of a Dog

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