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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Odongogenic had been initially described and classified as a variant of the ameloblastoma and has been recognized as a distinct lesion only since J Oral Maxillofac Surg. Abstract Adenomatoid odontogenic tumor AOT is a rare odontogenic tumor which is often misdiagnosed as odontogenic cyst. Peripheral adenomatoid odontogenic tumor: Odontogenic tumors in Mexico: J Oral Pathol Med. This article has been cited by other articles in PMC.

During the last few years several studies have been published dealing with the immunhistological properties of AOT. One year ago the dentist diagnosed a cyst with a ectopic lower right canine tooth by an x-ray.

Histologically, the tumor is solid and there is a cyst formation Fig. J Clin Pediatr Dent. All authors disclaim any financial or non-financial interests or commercial associations that might pose adenomatois create a conflict of interest with information presented in this manuscript.

However, the rare peripheral variant occurs primarily in the gingival tissue of tooth-bearing areas [ 9 ]. Under general anesthesia the lesion was enucleated and afterwards filled with pelvic spongiosa. No resorption of the root apices was observed Fig. Unicystic radiolucent lesion in the lawer right jaw with a comparatively clear demarcation.


Finally, Gao et al. 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

Received Mar 25; Accepted Aug Panoramic radiograph before therapy. Odontogenic tumors and neoplastic-like changes of the jaw bone. Unal et al [ 2 ] produced a list containing all nomenclatures for AOT reported in the literatures. The tooth 43 was located on the floor of this process.

Adenomatoid Odontogenic Tumour: Review and Case Report

The surgical treatment of such neoplasm is generally conservative, provided that the removal of the lesion and the curettage of the residual area are meticulously performed; in these conditions recurrence adrnomatoid extremely rare. Immunhistochemical localization of amelogenin in human odontogenic tumors, using a polyclonal antibody against bovine amelogenin. Br J Oral Maxillofac Surg. Open in a separate window.

Some sections were stained with haematoxylin-eosin. The lesion usually present as asymptomatic swelling which is slowly growing and often associated with an unerupted tooth. Remarkably, all variants of AOT show identical histology. 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

Repair odonyogenic an intrabony defect from an adenomatoid odontogenic tumor. Clinical study and evaluation of treatment results. The adenomatoid odontogenic tumour AOT: In addition, in one recently reported case MRI was useful to distinguish AOT from other lesions, even if it is difficult on periapical ordinal radiographies [ 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 ]. WHO histological typing of odontogenic tumours. Author information Article notes Copyright and License information Disclaimer.

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

Moreover, eosinophilic, uncalcified, amorphous material can be found and is called “tumor droplets”. English Adenomatoid odontogenic tumor: From the early s onwards 65 single cases of AOT excluding case series of more than 10 cases have been published. For illustration a rare case of an AOT in the mandible is presented. The tumor may be aenomatoid cystic, and in some cases the solid lesion may be present only as masses in the wall of a large cyst [ 14 ]. 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 ].