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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Treatment is conservative and the prognosis is excellent. Open in a separate window. J Clin Pediatr Dent. For illustration a rare case of an AOT in the mandible is presented. Interestingly, there are a few reports about pigmented cells in AOT. A year-old man was referred by his general dental practitioner.

Limitation of panoramic radiography in diagnosing adenomatoid odontogenic tumors. It is predominantly found in young female patients and usually located in the maxilla associated with an unerupted permanent tooth. Panoramic radiograph before therapy.

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However, the rare peripheral variant occurs primarily in the gingival tissue of tooth-bearing areas [ 9 ]. Conservative surgical enucleation is the treatment modality of choice. Some sections were stained with haematoxylin-eosin. Recently, Crivelini et al. 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 ].

Adenomatoid odontogenic tumor AOT is a rare odontogenic tumor which is often misdiagnosed as odontogenic cyst. Radiologically, he showed a 3 cm unicystic radiolucent image with a comparatively clear demarcation. The histological typing of the WHO defined the AOT as a tumor of odontogenic epithelium with duct-like structures and with varying degrees of inductive change in the connective tissue.


Adenomatoid odontogenic tumor of the mandible: review of the literature and report of a rare case

SB and AZ carried out the pathohistological investigations and participated in creating this part of the manuscript. The postoperative course and follow-up were uneventful. No root resorption could be observed.

All authors disclaim any financial or non-financial interests or commercial associations that might pose or create a conflict of interest with information presented in this manuscript.

Many different names like adenoameloblastoma, ameloblastic adenomatoid tumor, adamantinoma, epithelioma adamantinum or teratomatous odontoma have been used before to define the lesion currently called AOT. Whereas the follicular variant shows a well-circumscribed unilocular radiolucency associated with the crown and often part of the root of an unerupted tooth, the radiolucency of the extrafollicular type is located between, above or superimposed upon the roots of erupted permanent teeth [ 3 ].

Clinical features generally focus on complaints regarding a missing tooth. The tooth 43 was located on the floor of this process. Half a year after surgery a clinical and radiographic follow-up examination was performed.

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

Moreover, eosinophilic, uncalcified, adenomatoie material can be found and is called “tumor droplets”. The lesion usually present as asymptomatic swelling which is slowly growing and often associated with an unerupted tooth.

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. For radiological diagnose the intraoral periapical radiograph seems to be more useful than odonrogenic.

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It is adeenomatoid found in young and female patients, located more often in the maxilla in most cases associated with an uneruppted permanent tooth.

Immunohistochemical demonstration of bone morphogenic protein in odontogenic tumors. Case report A year-old man was referred by his general dental practitioner. However, a variety of terms have been used to describe this tumor.

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

Adenomatoid Odontogenic Tumour: Review and Case Report

AOT should be considered in the differential diagnosis of radiolucent jaws swelling, although its low incidence. No resorption of the root apices was observed Fig. Both patients have been treated under general anesthesia for the removal of the lesions with unerupted tooth.

Unerupted permanent canine are the theeth most often involved in AOTs. Clinical study and evaluation of treatment results.

J Oral Maxillofac Surg. Pathohistological features Remarkably, all variants of AOT show identical histology. Under general anesthesia the lesion was enucleated and afterwards filled with pelvic spongiosa. Competing interests All authors disclaim any financial or non-financial interests or commercial associations that might pose or create a conflict of interest with information presented in this manuscript.