Difference between revisions of "Amyloid-producing Odontogenic Tumour"

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Also known as: '''''Calcifying epithelial odontogenic tumour  
 
Also known as: '''''Calcifying epithelial odontogenic tumour  
  
==Description==  
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==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|melanoma]]. They can erode but not infiltrate adjacent bone. The most prominent feature of this type of tumour is that it produces amyloid which tends to calcify.
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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 common odontogenic tumour in cats and more rarely found in dogs.
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This is a rare tumour seen more often in cats and than in dogs.
  
 
==Diagnosis==
 
==Diagnosis==
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Good following complete surgical excision however recurrance following incomplete surgical excision is possible.
 
Good following complete surgical excision however recurrance following incomplete surgical excision is possible.
  
==Literature Search==
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{{Learning
[[File:CABI logo.jpg|left|90px]]
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|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]
 
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|Vetstream = [https://www.vetstream.com/felis/Content/Disease/dis02424.asp Amyloidosis]
 
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}}
Use these links to find recent scientific publications via CAB Abstracts (log in required unless accessing from a subscribing organisation).
 
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[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]
 
  
 
==References==
 
==References==
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[[Category:Cat]][[Category:Oral_Cavity_-_Proliferative_Pathology]][[Category:Teeth_-_Proliferative_Pathology]]
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[[Category:Oral Diseases - Cat]][[Category:Oral_Cavity_-_Proliferative_Pathology]][[Category:Teeth_-_Proliferative_Pathology]]
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[[Category:Neoplasia]]
 
[[Category:Neoplasia]]
  
[[Category:Dog]]
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[[Category:Oral Diseases - Dog]]
[[Category:Expert Review]]
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[[Category:Expert Review - Small Animal]]
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[[Category:LisaM reviewing]]

Latest revision as of 09:54, 21 May 2016


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

This is a rare tumour seen more often in cats and than in dogs.

Diagnosis

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

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 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

Surgical excision with narrow margins is normally sufficient. Radiation therapy should be considered in cases of incomplete surgical excision.

Prognosis

Good following complete surgical excision however recurrance following incomplete surgical excision is possible.


Amyloid-producing Odontogenic Tumour Learning Resources
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Literature Search
Search for recent publications via CAB Abstract
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Amyloid-producing Odontogenic Tumour publications


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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