Adenomatoid odontogenic tumor

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

Adenomatoid odontogenic tumor
SpecialtyDentistry

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).

Diagnosis

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

Treatment can involve enucleation.[4]

Epidemiology

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

References
  1. Nigam S, Gupta SK, Chaturvedi KU (2005). "Adenomatoid odontogenic tumor - a rare cause of jaw swelling". Braz Dent J. 16 (3): 251–3. doi:10.1590/S0103-64402005000300015. PMID 16429194.
  2. Nonaka CF, de Souza LB, Quinderé LB (2007). "Adenomatoid odontogenic tumour associated with dentigerous cyst--unusual case report". Rev Bras Otorrinolaringol (Engl Ed). 73 (1): 129–31. doi:10.1016/s1808-8694(15)31135-6. PMID 17505612.
  3. Handschel JG, Depprich RA, Zimmermann AC, Braunstein S, Kübler NR (August 2005). "Adenomatoid odontogenic tumor of the mandible: review of the literature and report of a rare case". Head Face Med. 1: 3. doi:10.1186/1746-160X-1-3. PMC 1266042. PMID 16270916.
  4. Vasconcelos BC, Frota R, Cardoso AB, Porto GG, Carneiro SC (2008). "Adenomatoid odontogenic tumor". Braz J Otorhinolaryngol. 74 (2): 315. doi:10.1016/s1808-8694(15)31107-1. PMID 18568215.
  5. "Odontogenic tumors". Archived from the original on 2011-07-20. Retrieved 2009-01-04.
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