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− | {{unfinished}} | + | {{OpenPagesTop}} |
| + | Also known as: '''''Calcifying epithelial odontogenic tumour |
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− | ==Description== | + | ==Introduction== |
− | The lesions appear as masses that are friable and ulcerated. Many amyloid-producing odontogenic tumours are [[Neoplasia - Pathology#Nomenclature|melanotic]] which makes them difficult to distinguish from the more aggressive malignant melanoma. They can erode but not infiltrate adjacent bone. | + | 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. |
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| ==Typical Signalment== | | ==Typical Signalment== |
− | This is a common odontogenic tumour in cats and more rarely found in dogs. | + | This is a rare tumour seen more often in cats and than in dogs. |
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| ==Diagnosis== | | ==Diagnosis== |
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| ===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. | | Include halitosis, oral bleeding, dental disruption or loss, facial or mandibular deformity, excessive salivation, growth protruding from the mouth and rarely dysphagia. |
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| ===Diagnostic Imaging=== | | ===Diagnostic Imaging=== |
− | 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 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. |
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| ===Biopsy=== | | ===Biopsy=== |
− | | + | Biopsy is required for a definitive diagnosis. |
− | 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. |
− | Incisional Biopsy is the best option, when undertaking cytological or grab procedures it is difficult to obtain a representative sample. | |
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| Histologically, the tumour appears to be well demarcated from the surrounding tissue but is not encapsulated. | | Histologically, the tumour appears to be well demarcated from the surrounding tissue but is not encapsulated. |
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| ==Prognosis== | | ==Prognosis== |
− | *Good following complete surgical excision.
| + | Good following complete surgical excision however recurrance following incomplete surgical excision is possible. |
− | *Recurrance following incomplete surgical excision is possible.
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| + | {{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] |
| + | }} |
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| ==References== | | ==References== |
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− | *Tutt, C., Deeprose, J. and Crossley, D. (2007) '''BSAVA Manual of Canine and Feline Dentistry (3rd Edition)''' ''BSAVA''
| + | Tutt, C., Deeprose, J. and Crossley, D. (2007) '''BSAVA Manual of Canine and Feline Dentistry (3rd Edition)''' ''BSAVA'' |
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| + | Merck & Co (2008) '''The Merck Veterinary Manual (Eighth Edition)''' ''Merial'' |
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| + | {{review}} |
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| + | {{OpenPages}} |
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| + | [[Category:Oral Diseases - Cat]][[Category:Oral_Cavity_-_Proliferative_Pathology]][[Category:Teeth_-_Proliferative_Pathology]] |
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− | *Merck & Co (2008) '''The Merck Veterinary Manual'''
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− | [[Category:Cat]][[Category:Oral_Cavity_-_Proliferative_Pathology]][[Category:Teeth_-_Proliferative_Pathology]]
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− | [[Category:To_Do_-_Caz]]
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| [[Category:Neoplasia]] | | [[Category:Neoplasia]] |
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| + | [[Category:Oral Diseases - Dog]] |
| + | [[Category:Expert Review - Small Animal]] |
| + | [[Category:Oral Proliferations]] |
| + | [[Category:LisaM reviewing]] |