Adenomatoid odontogenic tumor associated with an unerupted mandibular lateral incisor: a case report

Seo, Won Gyo; Kim, Chul‐Hwan; Park, Hae Seo; Jang, Jong Won; Chung, Woo Yeol

doi:10.5125/jkaoms.2015.41.6.342

Cited by 11 publications

(16 citation statements)

References 15 publications

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“…Adenomatoid odontogenic tumor (AOT) is an uncommon benign neoplasm of odontogenic epithelial origin accounting for less than 3% of all odontogenic tumors ( 1 - 3 ). Benign and slow-growing, it is believed to originate from the remnants of the dental lamina or the enamel organ ( 1 , 4 - 6 ). In 1969, Philipsen et al proposed the name “adenomatoid odontogenic tumor,” which was later adopted by the World Health Organization with the understanding that this lesion has a benign and non-aggressive behavior ( 2 - 5 , 7 , 8 ).…”

Section: Introductionmentioning

confidence: 99%

Adenomatoid odontogenic tumor: Case series of 14 with wide range of clinical presentation

2017

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BackgroundTo present 14 cases of adenomatoid odontogenic tumor (AOT), highlighting their clinical, radiographic, and histologic characteristics.Material and MethodsFourteen cases of AOT were retrieved from the archives of the Oral Pathology Biopsy Service (OPBS). Clinical, radiologic, and histologic findings are described.ResultsFourteen AOT cases were reviewed, of which 12 were intraosseous and two were peripheral (gingiva). The cases came from eight females and six males with an age range of 11–30. Of the 12 intraosseous cases, nine were follicular (associated with impacted teeth), while three were extra-follicular (present between teeth). Six of the 12 cases were in the maxilla, and the other six were in the mandible. The two peripheral cases presented as nodules on the buccal gingiva of the anterior maxillary teeth. Radiographically, all 12 follicular and extra-follicular cases were unilocular radiolucencies; of those, only one had specks of radiopacity. Histologically, all specimens were similar in morphology, demonstrating a varied degree of duct-like structures, epithelial spheres, spindle-shaped epithelial cells, calcifications, and a thick capsule. The two peripheral cases had no capsule.ConclusionsAOT usually affects patients under 20 years of age, with a female to male ratio close to 2:1. Presentation in the anterior maxilla is almost twice as common as in the anterior mandible. Radiographically, AOT presents as a unilocular radiolucency more commonly associated with impacted teeth, simulating a dentigerous cyst. We present 14 new cases of AOT (nine follicular, three extra-follicular, and two peripheral) with discussions of their clinical, radiographic, and histological features. Key words:Adenomatoid, odontogenic, tumor.

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Section: Introductionmentioning

confidence: 99%

Adenomatoid odontogenic tumor: Case series of 14 with wide range of clinical presentation

2017

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“…Radiographically, in most cases, AOT shows a unilocular radiolucency with well -defined borders and may contain numerous dispersed radiopaque foci. 4,7 Except for the absence of calcifications in the lesion, the present case presents the classic characteristics of the lesion.…”

Section: Discussionmentioning

confidence: 71%

“…AOT is a rare, hamartomatous, epithelial lesion of odontogenic origin. 4,6 It's one of the most controversial lesions, due to its histopathological characteristics and similarity to ameloblastoma, thus previously receiving the name of pseudo--adenomeloblastoma. 2 When compared to ameloblastomas, the most common odontogenic tumor, AOT is a nonaggressive tumor, encapsulated with limited growth and no tendency of recurrence.…”

Section: Discussionmentioning

confidence: 99%

“…The term Adenomatoid odontogenic tumor, adopted by the World Health Organization classification of odontogenic tumors in 1971, is still the most accepted and currently used nomenclature. 3,4 AOT is a rare and non -aggressive epithelial odontogenic tumor that occurs in intraosseous and peripheral forms. The intraosseous variants are the most frequent and include follicular and extrafollicular types.…”

Section: Introductionmentioning

confidence: 99%

“…Women are affected more often than men (a ratio of 1.9:1.0), and the lesions tend to occur in the anterior maxilla region. 4,6 The aim of this study was to report the surgical management of an AOT, show the results from the five years of follow--up, and discuss clinical and radiographic aspects with the current literature.…”

Section: Introductionmentioning

confidence: 99%

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Surgical treatment of Adenomatoid Odontogenic Tumor: A 5-year follow-up

Meira¹,

Pereira²,

Soares³

et al. 2017

j.rpemd

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a b s t r a c tAdenomatoid odontogenic tumor (AOT) is a rare odontogenic tumor with limited growth and usually associated with an unerupted permanent tooth. It is a benign lesion, with a low rate of recurrence after surgical treatment. This is a case report of an 11-year-old female with an asymptomatic tumor growth on the maxilla and palatal displacement of the lateral incisor. A unilocular lesion surrounding the coronal impacted right upper canine and the displacement of premolars were observed radiographically. After incisional biopsy, the tumor was diagnosed as AOT. The enucleation of the lesion and the removal of the impacted canine was performed. Four months later, the patient had not shown any signs of recurrence and was referred for orthodontic treatment. New surgical procedure was performed to remove the gums that covered the premolars to promote their eruption. Five years later, the premolars are in position in the dental arch and there are no signs of recurrence of the lesion. (Rev Port Estomatol Med Dent Cir Maxilofac. 2017;58(2):126-131) © 2017 Sociedade Portuguesa de Estomatologia e Medicina Dentária. Published by SPEMD. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). rev port estomatol med dent cir maxilofac. 2017;58(2): 126-131 r e s u m o Tratamento cirúrgico de Tumor Odontogénico Adenomatóide: Acompanhamento de 5 anos Palavras-chave: Tumor odontogênico adenomatóide Dente impactado Tumores odontogênicos Cirurgia oral O tumor odontogênico adenomatóide (TOA) é um tumor raro com crescimento limitado egeralmente associado a um dente permanente não erupcionado. É uma lesão benigna, com baixa taxa de recorrência após tratamento cirúrgico. Relato de caso de uma menina de 11 anos de idade com crescimento tumoral assintomático na maxila e deslocamento palatino do incisivo lateral. Radiograficamente, foi observada uma lesão unilocular em torno da coroa do canino superior direito impactado e deslocamento dos pré-molares. Após a biópsia inci-sional, o tumor foi diagnosticado como TOA. A enucleação da lesão e do canino impactado foi realizada. Quatro meses depois, o paciente não apresentou sinais de recorrência e foi encaminhado para tratamento ortodôntico. Um novo procedimento cirúrgico foi realizado para remover a gengiva que cobria os pré-molares para promover sua erupção. Após cinco anos, os pré-molares encontram-se em posição no arco dentário e não existem sinais de recorrência da lesão. (Rev Port Estomatol Med Dent Cir Maxilofac. 2017;58(2):126-131)

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Differential diagnosis of ameloblastic fibro-odontoma: case report and literature review

Kurimoto

Yamanishi

Harada

et al. 2019

Journal of Oral and Maxillofacial Surgery, Medicine, and Pathol

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Adenomatoid odontogenic tumor associated with an unerupted mandibular lateral incisor: a case report

Cited by 11 publications

References 15 publications

Adenomatoid odontogenic tumor: Case series of 14 with wide range of clinical presentation

Adenomatoid odontogenic tumor: Case series of 14 with wide range of clinical presentation

Surgical treatment of Adenomatoid Odontogenic Tumor: A 5-year follow-up

Differential diagnosis of ameloblastic fibro-odontoma: case report and literature review

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