A Rare Case of Odontogenic Myxoma in a Dog

Abstract

A case of odontogenic myxoma in an old Doberman bitch involving the periodontal region of the mandible was recorded. Grossly, the tumour mass was soft and slimy, having brownish-black foci on cut surface. Histopathologically, the tumour predominantly consisted of mesenchyme-like cells with prominent nuclei and nucleoli. The tumour had abundant ground substance, rich in acid mucopolysaccharides.

Bokser Irkı 12 Yaşlı Bir Köpekte Rastlanan Kutanöz Miksoma Olgusu

“…2D). These histopathologic findings are consistent with the literature 15 . Cutaneous myxomas are generally benign in character 4,10,13 and no recurrence is expected after total surgical exicion.…”

“…Gupta et al 15 , reported that the dark-brown colour is due to continous haemorrhage into the tumor which is highly vascularized, which might have resulted in anaemia. We suppose that anemia of our patient was because of this.…”

Odontogenic Myxoma in an 8-Year-Old Labrador Retriever Dog

“…7,8,12 Of the few cases documented in domestic animals, 1 report was in a 1.5-year-old mixed breed filly, 1 another in a 12-year-old female Doberman Pincher, 5 and the most recent cases were in a 14-year-old male Dachshund 2 and a 3-year-old Jack Russell terrier. 10 The current report compares the gross, microscopic, and prognostic attributes seen in the present tumor with those described in the other 3 canine OM cases reported elsewhere (Table 1).…”

“…Accurate diagnosis of these tumors, therefore, is of paramount importance because these tumors frequently show aggressive behavior, despite a deceptively slow growth pattern. 5,10 Odontogenic myxoma (OM) is a benign but locally invasive OT variant of mesenchymal origin that arises from the dental papilla, dental follicle, and periodontal ligament. 13,15 Also called odontogenic fibromyxoma, OM has been reported at a very low frequency in human beings 4,8,9,11 and is extremely rare in domestic animals.…”

“…10 The current report compares the gross, microscopic, and prognostic attributes seen in the present tumor with those described in the other 3 canine OM cases reported elsewhere (Table 1). 2,5,10 A formalin-fixed biopsy from an 8-year-old Labrador Retriever was received for histologic evaluation at the North Dakota State University, Veterinary Diagnostic Laboratory (Fargo, North Dakota). The case history indicated that the biopsy was taken from an ulcerohemor- rhagic mass located on the caudal area of the right maxillary gingiva.…”