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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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 ]. Journal List Odonyogenic Face Med v. SB and AZ carried out the pathohistological investigations and participated in creating this part of the manuscript.
Odontogenic tumors in Mexico: The postoperative course was uneventful.
Authors have analyzed the last 30 years of international literature and present hereby two cases of a rare neoplasm of the maxillary bones: Cytokeratins in epithelia of odontogenic neoplasms.
J Clin Pediatr Dent.
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. Br J Oral Maxillofac Surg. However, a variety of terms have been used to describe this tumor. Remarkably, all variants of AOT show identical histology. Support Center Support Center.
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Immunhistological features During the last few years several studies have been published dealing with the immunhistological properties of AOT. Author information Article notes Copyright and License information Disclaimer. The odonyogenic odontogenic tumour AOT: Treatment and prognosis Conservative surgical enucleation is the treatment modality of choice.
Pathohistological features Remarkably, all variants of AOT show identical histology. The histological typing of the WHO defined the AOT as a tumor of odontogenic epithelium with duct-like structures and deview varying degrees of inductive change in the connective tissue.
Treatment is conservative and the prognosis odoontogenic excellent. Unal et al [ 2 ] produced a list containing all nomenclatures for AOT reported in the literatures. Positive reactions for amelogenin in limited areas in AOT are also reported as well as in ameloblasts and in the immature enamel matrix [ 20 ].
Recurrence of AOT is exceptionally rare. Interestingly, there are a few reports about pigmented cells in AOT. During the last few years several studies have been published dealing with the immunhistological properties of AOT. Indian J Dent Res. Immunhistochemical localization of amelogenin in human odontogenic tumors, using a polyclonal antibody against bovine amelogenin.
Histologically, the tumor is solid and there is a cyst formation Fig. Whereas the follicular variant shows a well-circumscribed unilocular radiolucency associated with the crown and often reviee 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 ].
No resorption of the root apices was observed Fig. After the operation, the specimen was fixed in 4 per cent formal saline and prepared for histological examination. The mean age was Some sections were stained with haematoxylin-eosin.
Italian Journal of Maxillofacial Surgery 2008 December;19(3):131-6
Interestingly, Takahashi et al. Case report A year-old man was referred by his general dental practitioner. The tooth 43 was located on revie floor of this process.
Half a year after surgery a clinical and radiographic follow-up examination was performed. Birth of adenomatoie term.
From the early s onwards 65 single cases of AOT excluding case series of more than 10 cases have been published. Regarding the various case series published in the literature [e. This odintogenic is an amartomatous, non-invasive lesion with slow but progressive growing. In Philipsen and Reichart [ 3 ] presented a review based on reports published until which showed some interesting aspects regarding epidemiological figures of this tumor.
Adenomatoid odontogenic tumor of the mandible: review of the literature and report of a rare case
Recently, Crivelini et al. Conservative surgical enucleation is the treatment modality of choice. Adenomatoid odontogenic tumor AOT is a rare odontogenic odontlgenic which is often misdiagnosed as odontogenic cyst.
Received Mar 25; Accepted Aug The lesion usually present as asymptomatic swelling which is slowly growing and often associated with an unerupted tooth.
The histopathological report after surgery confirmed the diagnosis of AOT. For radiological diagnose the intraoral periapical radiograph seems to be more useful than panoramic. However, AOT frequently resemble other odontogenic lesions such as dentigerous cysts or odontogennic.
Epidemiology From the early s onwards 65 single cases of AOT excluding case series of more than 10 cases have been published. For periodontal intrabony defects caused by AOT guided tissue regeneration with membrane revuew is suggested after complete removal of the tumor [ 23 ]. Panoramic radiograph six months after therapy. A year-old man was referred by his general dental practitioner. One year ago the dentist diagnosed a cyst with a ectopic lower right canine tooth by an x-ray.
Whereas cementifying fibromas, dentinomas and compound odontomas demonstrated a positive reaction, all AOT as well as ameloblastomas and calcifying epithelial odontogenic tumors were negative.