Feline inductive odontogenic tumour in a Burmese cat.

A 7-month-old, male, Burmese cat was presented with an oral mass that had rapidly regrown following excisional biopsy 3 weeks earlier. The tumour was identified by histological examination as a feline inductive odontogenic tumour. A unilateral segmental mandibulectomy was performed. Although dental malocclusion resulted from mandibular drift to the operated side, the cat displayed minimal dysphagia post-operatively and there was no evidence of tumour regrowth 8 months after surgery. Feline inductive odontogenic tumour is a rare dental tumour described exclusively in cats under 3-years-of-age. Although histopathologically benign, feline inductive odontogenic tumour grows by expansion and can infiltrate underlying bone to cause considerable local destruction. This article is intended to increase awareness of this unusual tumour which, with complete surgical excision, carries a good prognosis. It also emphasises the importance of obtaining a histological diagnosis from oral mass lesions to direct appropriate therapy and to provide an accurate prognosis.

[1]  R. Gorlin,et al.  The oral and pharyngeal pathology of domestic animals. A study of 487 cases. , 1959 .

[2]  R. Gorlin,et al.  ODONTOGENIC TUMORS IN MAN AND ANIMALS: PATHOLOGIC CLASSIFICATION AND CLINICAL BEHAVIOR—A REVIEW * , 1963, Annals of the New York Academy of Sciences.

[3]  Dorn Cr,et al.  Epidemiologic analysis of oral and pharyngeal cancer in dogs, cats, horses, and cattle. , 1976 .

[4]  R. Dubielzig,et al.  Inductive fibroameloblastoma, an unusual dental tumor of young cats. , 1979, Journal of the American Veterinary Medical Association.

[5]  B. Jones,et al.  Adamantinoma in a cat. , 1982, Australian veterinary journal.

[6]  P. Quigley,et al.  Tumors Involving Bone in the Domestic Cat: A Review of Fifty-eight Cases , 1983, Veterinary pathology.

[7]  Bradley Rl,et al.  Mandibular resection for removal of oral tumors in 30 dogs and 6 cats. , 1984 .

[8]  B. Cooper,et al.  Epithelial odontogenic tumours in domestic animals. , 1987, Journal of comparative pathology.

[9]  I. van der Gaag,et al.  Canine and feline oral-pharyngeal tumours. , 1987, Zentralblatt fur Veterinarmedizin. Reihe A.

[10]  J. Losonsky,et al.  The effect of partial rostral hemimandibulectomy on mandibular mobility and temporomandibular joint morphology in the dog. , 1988, Veterinary surgery : VS.

[11]  M. Goldschmidt,et al.  Feline Oral Neoplasia: A Ten-Year Survey , 1989, Veterinary pathology.

[12]  B. Valentine,et al.  A Survey of Epithelial Odontogenic Tumors and Cysts in Dogs and Cats , 1992, Veterinary pathology.

[13]  M. Klein,et al.  Treatment of mandibular squamous cell carcinoma in cats by use of mandibulectomy and radiotherapy: seven cases (1987-1989). , 1992, Journal of the American Veterinary Medical Association.

[14]  W. Dernell,et al.  Surgical management of ameloblastic fibroma in the cat , 1994 .

[15]  R. Dubielzig,et al.  Feline inductive odontogenic tumor (inductive fibroameloblastoma)--a tumor unique to cats. , 1995, Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology.

[16]  D G Gardner Ameloblastomas in cats: a critical evaluation of the literature and the addition of one example. , 1998, Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology.

[17]  T. Fujinaga,et al.  Surgical correction of temporomandibular joint ankylosis in two cats. , 1999, Australian veterinary journal.