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Amyloid-producing Odontogenic Tumour (view source)
Revision as of 09:54, 21 May 2016
, 09:54, 21 May 2016→Prognosis
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Also known as: '''''Calcifying epithelial odontogenic tumour
==Introduction==
The lesions are slow growing and locally invasive.The most prominent feature of this type of tumour is that it produces amyloid which tends to calcify.
==Typical Signalment==
==Typical Signalment==
This is a rare tumour seen more often in cats and than in dogs.
==Diagnosis==
==Diagnosis==
===Clinical Signs===
===Clinical Signs===
Include halitosis, oral bleeding, dental disruption or loss, facial or mandibular deformity, excessive salivation, growth protruding from the mouth and rarely dysphagia.
===Diagnostic Imaging===
===Diagnostic Imaging===
Skull radiography may show a soft tissue opacity in the area of the gingiva with lytic invasion of the underlying alveolar bone. If a malignant neoplasm is a dignostic possibility, thoracic radiography should be carried out to evaluate for lung metastases.
Skull radiography may show a soft tissue opacity with mineralization within the mass. Periosteal reaction of the adjacent bone may be visualised. If a malignant neoplasm is a diagnostic possibility, thoracic radiography should be carried out to evaluate for lung metastases.
===Biopsy===
===Biopsy===
Biopsy is required for a definitive diagnosis.
Incisional biopsy is the best option, when undertaking cytological or grab procedures it is difficult to obtain a representative sample.
Histologically, the tumour appears to be well demarcated from the surrounding tissue but is not encapsulated.
==Treatment==
==Treatment==
Surgical excision with narrow margins is normally sufficient.
Radiation therapy should be considered in cases of incomplete surgical excision.
==Prognosis==
==Prognosis==
Good following complete surgical excision.
Good following complete surgical excision however recurrance following incomplete surgical excision is possible.
{{Learning
|literature search = [http://www.cabdirect.org/search.html?q=%28%28%28%22Amyloid+producing+Odontogenic+Tumor%22%29+OR+%28%22Calcifying+epithelial+odontogenic+tumor%22+%29%29%29+OR+%28%28%28%22Amyloid+producing+Odontogenic+Tumour%22%29+OR+%28%22Calcifying+epithelial+odontogenic+tumour%22+%29%29%29 Amyloid-producing Odontogenic Tumour publications]
|Vetstream = [https://www.vetstream.com/felis/Content/Disease/dis02424.asp Amyloidosis]
}}
==References==
==References==
Tutt, C., Deeprose, J. and Crossley, D. (2007) '''BSAVA Manual of Canine and Feline Dentistry (3rd Edition)''' ''BSAVA''
Merck & Co (2008) '''The Merck Veterinary Manual (Eighth Edition)''' ''Merial''
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[[Category:Oral Diseases - Cat]][[Category:Oral_Cavity_-_Proliferative_Pathology]][[Category:Teeth_-_Proliferative_Pathology]]
[[Category:Neoplasia]]
[[Category:Oral Diseases - Dog]]
[[Category:Expert Review - Small Animal]]
[[Category:Oral Proliferations]]
[[Category:LisaM reviewing]]