Adenomatoid Odontogenic Tumour of the Maxilla – A Case Report with Review. 1 Reader. Dept of Oral Medicine and Radiology. SRM Dental College. Adenomatoid odontogenic tumour is a benign (hamartomatous), noninvasive lesion with slow but progressive growth. The 3 variants — follicular, extrafollicular . Adenomatoid odontogenic tumor is a hamartomous benign neoplasia of odontogenic origin. It appears mostly in young patients and females, the maxillary.

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Pathohistological features Remarkably, all variants of AOT show identical histology. Clinical features Clinical features generally focus on complaints regarding a missing tooth.

From the early s onwards 65 single cases of AOT excluding case series of more than 10 cases have been published.

Adenomatoid Odontogenic Tumour: Review and Case Report

Moreover, eosinophilic, uncalcified, amorphous material can be found and is called “tumor droplets”. Authors have analyzed the last 30 years of international literature and present hereby two cases of a rare neoplasm of the maxillary bones: One year ago the dentist diagnosed a cyst with a ectopic lower right canine tooth by an x-ray.

Panoramic radiograph before therapy. National Center for Biotechnology InformationU. Odontogenic tumors and neoplastic-like changes of the jaw bone.

There was no evidence of recurrence and no apical resorption of the adjacent teeth could be observed Fig. However, AOT frequently resemble other odontogenic lesions such as dentigerous cysts or ameloblastoma. Pigmented lateral periodontal cyst and other pigmented odontogenic lesions.


Please review our privacy policy. It is predominantly found in reivew female patients and usually located in the maxilla associated with an unerupted permanent tooth. Support Center Support Center.

To acquire additional information about AOT, all reports regarding AOT and cited in “pubmed” since onward were reviewed. AOT had been initially described and classified as a variant of the ameloblastoma and has been recognized as a distinct lesion only afenomatoid Received Mar 25; Accepted Aug SB and AZ carried out the pathohistological investigations and participated in creating this part of the manuscript.

All authors were involved in revising the manuscript critically and have given final approval of the version to be published. Review of literature and report of 30 cases from India.

The epithelium is in the form of whorled masses of spindle cells as well as sheets and plexiform strands. Histologically, the tumor is solid and there is a cyst formation Fig. The tumor may be partly cystic, and in some cases the solid lesion may be present only as masses in the wall of a large cyst [ 14 ]. The tooth 43 was located on the floor of this process.

For radiological diagnose the intraoral periapical radiograph seems to be more useful than panoramic. Repair of an intrabony defect from an adenomatoid odontogenic tumor. Immunhistological features During the last few years several studies have been published dealing with the immunhistological properties of AOT. With respect to the age of the patient and the localization of the AOT in the lower jaw, the reported case is a rare example of this tumor entity.


Italian Journal of Maxillofacial Surgery 2008 December;19(3):131-6

Racial pigmentation probably plays an important role in such cases [ 1617 ]. However, a variety of terms have been used to describe this tumor. Cite this article as. The postoperative course was uneventful.

Rings of columnar cells give rise to duct-like appearance Fig.

Displacement of neighbouring teeth due to tumor expansion is much more common than root resorptions. Treatment is conservative and the prognosis is excellent. Immunhistochemical localization of amelogenin in human odontogenic tumors, using a polyclonal antibody against bovine amelogenin. Radiographic features The radiographic findings of AOT frequently resemble other odontogenic lesions such as dentigerous cysts, calcifying odontogenic cysts, calcifying odontogenic tumors, globule-maxillary cysts, ameloblastomas, odontogenic keratocysts and periapical disease [ 10 ].

Positive reactions for amelogenin in limited areas in AOT are also reported as well as in ameloblasts and in the immature enamel matrix [ 20 ]. Unicystic radiolucent lesion in the lawer right jaw with a comparatively clear demarcation. A case of multiple AOT-like jawbone lesions in a young patient-a new odontogenic entity? No root resorption could be observed.

Treatment and prognosis Conservative surgical enucleation is the treatment modality of choice.