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Adenomatoid odontogenic tumor

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Adenomatoid odontogenic tumor
Adenomatoid odontogenic tumor.jpg

The adenomatoid odontogenic tumor is an odontogenic tumor[1] arising from the enamel organ or dental lamina.

Signs and symptoms

Two thirds of cases are located in the anterior maxilla, and one third are present in the anterior mandible.[2]

Two thirds of the cases are associated with an impacted tooth (usually being the canine).


On radiographs, the adenomatoid odontogenic tumor presents as a radiolucency (dark area) around an unerupted tooth extending past the cementoenamel junction.

It should be differentially diagnosed from a dentigerous cyst and the main difference is that the radiolucency in case of AOT extends apically beyond the cementoenamel junction.

Radiographs will exhibit faint flecks of radiopacities surrounded by a radiolucent zone.

It is sometimes misdiagnosed as a cyst.[3]


Treatment can involve enucleation.[4]


It is fairly uncommon, but it is seen more in young people. Two thirds of the cases are found in females.[5]


External links


Portions of content adapted from Wikipedia's article on Adenomatoid odontogenic tumor which is released under the CC BY-SA 3.0.


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