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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To acquire additional information about AOT, all reports regarding AOT and cited in “pubmed” since onward were reviewed.

However, all of these reported lesions did not show macroscopically visible pigmentation. 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 ]. Published online Aug One year ago the dentist diagnosed a cyst with a ectopic lower right canine rrview by an x-ray.

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

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

This article describes two cases concerning two young female patients who presented at odontpgenic Department in the period comprised between December and February with an asymptomatic swelling with a slowly growing lesion: English Adenomatoid odontogenic tumor: There are no resorption of the root apices. The tooth 43 is located on the floor of this process. This neoplasm is an amartomatous, non-invasive lesion with slow but progressive growing.


Please review our privacy policy. The postoperative course and follow-up were uneventful. Calcification is sometimes seen and may be extensive Fig. AOT should be considered in the differential diagnosis of radiolucent jaws swelling, although its low incidence.

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Whereas cementifying fibromas, dentinomas and compound odontomas demonstrated a positive reaction, all AOT as well as ameloblastomas and calcifying epithelial odontogenic tumors were negative.

However, the rare peripheral variant occurs primarily in the reiew tissue of tooth-bearing areas [ 9 ]. Rings of columnar cells give rise to duct-like appearance Fig.

Limitation of panoramic radiography in diagnosing adenomatoid odontogenic tumors. During the last few years several studies have been published dealing with the immunhistological properties of AOT. Unal et al [ 2 ] produced a list containing all nomenclatures for AOT reported in the literatures. Only three cases in Japanese patients are reported in which the recurrence of this tumor occurred [ 24 ]. Peripheral adenomatoid odontogenic tumor: A year-old man was referred by his general dental practitioner.

The epithelium is in the form of whorled masses of spindle cells as well as sheets and plexiform strands. The postoperative course was uneventful. No root resorption could be observed.

The histopathological report after surgery confirmed the diagnosis of AOT. 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.

AOT had been initially described and classified as a variant of the ameloblastoma and has been recognized as a distinct lesion only since Authors have analyzed the last 30 years of international literature and present hereby two cases of a rare neoplasm of the maxillary bones: Odontogenic tumours in children and adolescents: The tumor is most often diagnosed in the second decade of life and women are about twice as many affected than men.


Half a year after surgery a clinical and radiographic follow-up examination was performed. Pathohistological features Remarkably, all variants of AOT show identical histology. Odontogenic tumors and neoplastic-like changes of the jaw bone. Beyond it our case supports the above mentioned general description of AOTs. Immunohistochemically AOT is characterized by positive reactions with certain cytokeratins.

Adneomatoid, he showed a 3 cm unicystic radiolucent image with a comparatively clear demarcation.

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

Beside an uneventful medical history the patient presented no conspicuous intraoral clinical findings except the absence of the tooth Under general anesthesia the lesion was enucleated and afterwards filled adenomatkid pelvic spongiosa.

The peripheral lesions may show some erosions of the adjacent cortical bone [ 11 ]. For illustration a rare case of an AOT in the mandible is presented.