Adenomatoid odontogenic tumor simulating periapical cyst: case report

ABSTRACT The adenomatoid odontogenic tumor is a benign, non-invasive tumor and has a slow growth. Its preferred location is the anterior maxillary area, most often causing root displacement, more rarely resorption and mostly affects young women. Being asymptomatic, this injury is discovered upon routine radiographic examination, in which, in most cases, a unilocular, radiolucent image is observed and it may have some degree of calcification within the lesion. This work aims to report the case of a 14-year-old patient who attended the Lauro Wanderley University Hospital (UFPB), complaining of increased volume over a period of 8 months, in the region of non-vital tooth 21. The CT scan showed well-delimited unilocular, radiolucent lesion, with buccal cortex resorption. The proposed treatment plan involved enucleation, followed by peripheral ostectomy and bone graft with alloplastic materials. Because of its benign character, encapsulated and slow growing, the treatment of choice for adenomatoid odontogenic tumor is conservative, the surgical enucleation of the injury being advocated. The excised piece was sent for histopathological analysis, where the AOT diagnosis was confirmed. After 7 months, new bone formation was observed without signs of recurrence.

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An Extrafollicular Adenomatoid Odontogenic Tumor Mimicking a Periapical Cyst

Case Reports in Radiology ◽

10.1155/2018/6987050 ◽

2018 ◽

Vol 2018 ◽

pp. 1-5 ◽

Cited By ~ 2

Author(s):

Farzaneh Mosavat ◽

Roxana Rashtchian ◽

Negar Zeini ◽

Daryoush Goodarzi Pour ◽

Shabnam Mohammed Charlie ◽

...

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Panoramic Radiograph ◽

Common Type ◽

Odontogenic Tumor ◽

Cone Beam ◽

Adenomatoid Odontogenic Tumor ◽

Dental Practitioner ◽

Radiolucent Lesion ◽

Periapical Cyst

Adenomatoid odontogenic tumor (AOT) is a rare noninvasive odontogenic tumor that occurs mostly in the second decade of life. Based on its tooth association, AOT can be classified into three categories of follicular, extrafollicular, and peripheral types; the follicular classification is considered as the most common type of AOT. This study reported a large extrafollicular case of AOT in a 40-year-old female. She was asymptomatic and tumor was detected accidentally by her dental practitioner. Since the panoramic radiograph showed a well-defined unilocular radiolucent lesion, we observed radiopaque spots within the lesion by using cone beam computed tomography. The extrafollicular type can mimic a periapical radiolucent lesion.

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Adenomatoid odontogenic tumor: a report of two unusually large lesions in the mandible

American Journal of Clinical Pathology ◽

10.1093/ajcp/aqab191.188 ◽

2021 ◽

Vol 156 (Supplement_1) ◽

pp. S88-S89

Author(s):

A Lazim ◽

R Kuklani ◽

D Sundararajan

Keyword(s):

Benign Neoplasm ◽

Surgical Excision ◽

Odontogenic Tumor ◽

Radiographic Examination ◽

Adenomatoid Odontogenic Tumor ◽

Impacted Tooth ◽

Anterior Maxilla ◽

Recommended Treatment ◽

First Case ◽

The Right

Abstract Introduction/Objective Adenomatoid odontogenic tumor (AOT) is an uncommon benign odontogenic tumor representing 3 to 7% of all odontogenic tumors. This tumor was first reported as adeno-ameloblastoma by Bernier and Tiecke in 1950 as it was initially assumed to be a type of ameloblastoma. In 1969, Philipsen and Bern proposed the term adenomatoid odontogenic tumor which was subsequently adopted by WHO and became the accepted terminology for this tumor. AOT is classified as a tumor of odontogenic epithelium but occasionally abnormal hard tissues consistent with dentinoid material may also be present as part of the tumor. AOT tends to occur in younger patients and 50% of the cases are diagnosed in teenagers. It occurs twice as commonly in females and frequently involves the anterior maxilla. Radiographically, AOT can appear as a radiolucent or mixed lucent-opaque lesion and may be associated with an impacted tooth. Methods/Case Report We report two unusually large expansile lesions of AOT that presented in the mandible. In the first case, the tumor presented as an expansile radiolucent lesion involving the right posterior mandible in a 32 year old female. In the second case, the tumor presented as an expansile mixed lucent-opaque lesion involving the left anterior mandible in a 21 year old female. The clinical presentation, radiographic and imaging findings, histopathologic features and treatment of these two cases will be discussed. The recommended treatment for AOT is surgical excision. The prognosis is good as this tumor seldom recurs after excision. Results (if a Case Study enter NA) NA Conclusion AOT is considered to be a non-aggressive, non-invasive and slow growing benign neoplasm. It is usually discovered on routine radiographic examination as the lesion is usually small and asymptomatic at the time of diagnosis but occasional cases that are larger in size have been reported in the literature.

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A rare case of massif Adenomatoid Odontogenic Tumor in the anterior region of mandible: Mimicking as dentigerous cyst

Padjadjaran Journal of Dentistry ◽

10.24198/pjd.vol27no3.13561 ◽

2015 ◽

Vol 27 (3) ◽

Author(s):

Aris Munandar ◽

Endang Syamsudin ◽

Melita Sylvyana ◽

Kiki Akhmad Rizki

Keyword(s):

Dentigerous Cyst ◽

Final Diagnosis ◽

Odontogenic Tumor ◽

Radiographic Examination ◽

Adenomatoid Odontogenic Tumor ◽

Impacted Tooth ◽

Unusual Site ◽

Radiographic Features ◽

Odontogenic Epithelium ◽

Anterior Mandible

Background. Adenomatoid Odontogenic Tumor (AOT) is a rare tumor of epithelial origin. AOT appears in three clinico-topographic variants: follicular, extrafollicular and peripheral. The AOT was predominantly found in the upper jaw, and rarely found in mandible, especially at anterior mandible. AOT is a tumor of odontogenic epithelium having duct like structures, which may be partly cystic, and in some cases the solid lesion may be present only as masses in the wall of a large cyst. The surgical management of this lesion would be enucleation along with removal of associated impacted tooth. The prognosis for both of them is good and recurrences are very rare after complete removal of the lesion. Purpose. It is important to define final diagnose for AOT due to mimicking with DC in clinically and radiographically finding. Biopsy is still obviously necessary to the final diagnosis. Case. 15-year-old female patients reported with chief complain of swelling in anterior mandible. The swelling beginning 4 years ago, gradually progressed, with no history pain, discharge and patient is complaint about loss of sensation around anterior mandible. Aspiration revealed straw colored fluid thinking in the way of DC. The provisional diagnosis of DC was given due to clinical presentation and radiographic imaging. But the biopsy examination showed AOT due to duct-like epithelial cells was being found. Discussion. The case report illustrates characteristic clinical and radiographic features of follicular variant of AOT mimicking a DC at unusual site that is anterior mandible. AOT is thought to arise from odontogenic epithelium and associated with the impacted tooth. Rightfully AOT is a perfect imitator of DC radiographically as well as histopathologically. It usually clinically misdiagnosed as DC as both have a unilocular, well-defined radiolucency surrounding the crown of an impacted tooth. The mass was enucleated, involved teeth were extracted, and titanium plates are used to avoid pathologist fracture. The patient had uneventful postoperative recovery. Follow up of a year has not shown any evidence of recurrence. Conclusion. Follicular type of OAT could confuse us with DC if the support examination just only clinicaly finding and radiographic examination. This case could not be definitively diagnosed on clinical and radiographic features alone. Biopsy was obviously necessary to the final diagnosis.

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Ameloblastoma An asymptomatic odontogenic tumor

Bangladesh Journal of Otorhinolaryngology ◽

10.3329/bjo.v18i2.12031 ◽

2012 ◽

Vol 18 (2) ◽

pp. 238-241

Author(s):

Md Abdus Sattar ◽

Shihab Uzzaman

Keyword(s):

Head And Neck ◽

Treatment Plan ◽

Odontogenic Tumor ◽

Mandibular Molar ◽

Radiolucent Lesion ◽

The Right ◽

Root Apices ◽

Molar Region

A 20-year-old male presented with a small swelling in the vestibular area of the right lower second mandibular molar region. Clinically, the area was slightly tender and the tooth had grade two mobility. There was no nerve deficit or adenopathy in the head and neck. Vitality testing of the tooth revealed the tooth to be vital. Radiographically, the tooth had a relativelydefined radiolucent lesion in the periapex with resorption of the mesial and distal root apices. We have discussed the probable treatment plan with the patient and going for extraction of involving tooth and excision of whole lesion with complete margin which is suspected as ameloblastoma. DOI: http://dx.doi.org/10.3329/bjo.v18i2.12031 Bangladesh J Otorhinolaryngol 2012; 18(2): 238-241

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KERATOCYSTIC ODONTOGENIC TUMOR OF THE MAXILLARY ANTERIOR REGION MASQUERADING AS A RADICULAR CYST

Asian Journal of Pharmaceutical and Clinical Research ◽

10.22159/ajpcr.2017.v10i6.17513 ◽

2017 ◽

Vol 10 (6) ◽

pp. 3

Author(s):

Byakodi Sanjay Satappa ◽

Datar Uma Vasant ◽

Sampada Kanitkar ◽

Mamata Kamat

Keyword(s):

Rare Case ◽

Treatment Plan ◽

Accurate Diagnosis ◽

Odontogenic Tumor ◽

High Recurrence Rate ◽

Keratocystic Odontogenic Tumor ◽

Periapical Lesions ◽

Multilocular Radiolucency ◽

Periapical Cyst ◽

Odontogenic Neoplasm

Keratocystic odontogenic tumor (KCOT) is a benign odontogenic neoplasm which is characterized by aggressive behavior and a high recurrence rate. KCOTs have a predilection for the angle and ascending ramus of the mandible. Maxillary KCOTs are usually associated with nevoid basal cell carcinoma syndrome. Very few cases of non-syndromic KCOT crossing maxillary midline have been reported. In this article, we report a rare case of KCOT which presented as a multilocular radiolucency crossing midline and involving periapical area of maxillary incisors. The lesion thus simulated a periapical cyst. However, the lesion was proved to be a KCOT on histopathology. Thus this report highlights the need for histopathological evaluation of periapical lesions for accurate diagnosis and treatment plan.

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Calcifying cystic odontogenic tumour associated with odontoma involving mixed dentition

Brazilian Dental Science ◽

10.14295/bds.2016.v19i3.1224 ◽

2016 ◽

Vol 19 (3) ◽

pp. 101

Author(s):

Angélica Mandú ◽

Amanda Katarinny Gonzaga ◽

Maria Luiza Lopes ◽

Luciana Eloísa Nóbrega ◽

Antonio Costa

Keyword(s):

Clinical Signs ◽

Excisional Biopsy ◽

Odontogenic Tumor ◽

Mixed Dentition ◽

Radiographic Examination ◽

Central Incisor ◽

Odontogenic Tumour ◽

Unerupted Tooth ◽

Prolonged Retention ◽

Radiolucent Lesion

<p>The calcifying cystic odontogenic tumor (CCOT) is a benign cystic odontogenic tumor relatively uncommon and may be associated with other odontogenic lesions. This manuscript describes a case of CCOT associated with odontoma in a 9-year-old girl, who presented with a slight swelling along with prolonged retention of a maxillary primary central incisor. Radiographic examination showed a unilocular radiolucent lesion containing radiopaque material, associated with an unerupted tooth. Taking into consideration the clinical diagnostic of odontoma, an excisional biopsy was carried out. Microscopic examination established the diagnosis of a CCOT associated with odontoma. The association of these lesions is rare in individuals in the first decade of life, particularly involving mixed dentition, as outlined in this case. The patient remains under care with no clinical signs of recurrence.</p>

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Case Presentation of Concomitant and Contiguous Adenomatoid Odontogenic Tumor and Focal Cemento-Ossifying Dysplasia

The Open Dentistry Journal ◽

10.2174/1874210601509010340 ◽

2015 ◽

Vol 9 (1) ◽

pp. 340-345 ◽

Cited By ~ 2

Author(s):

Gita Rezvani ◽

Mandana Donoghue ◽

Peter A Reichart ◽

Neda Pazuhi

Keyword(s):

Imaging Techniques ◽

Odontogenic Tumor ◽

Adenomatoid Odontogenic Tumor ◽

Maxillary Canine ◽

Case Presentation ◽

Cellular Origin ◽

Distinct Disease ◽

Radiolucent Lesion ◽

The Right

A 24 year-old male was presented for the diagnosis of an asymptomatic bony expansion in relation to the right maxillary canine and first premolar. The unilocular radiolucent lesion with central foci of calcification had caused divergence of canine and first premolar roots without any resorption. This case report details a diagnosis of two distinct disease processes of different cellular origin namely, focal cemento-ossifying dysplasia and adenomatoid odontogenic tumor in a previously unreported concomitant and contiguous relationship. The diagnosis was determined by a combination of clinical, radiographic, histopathological and surgical evidence. This case highlights two points, first the need to examine all mixed radiolucent-radiopaque lesions with advanced imaging techniques to assess the number and extent of the lesions prior to treatment planning. Second a likely role of periodontal ligament as the tissue source for odontogenic epithelial cells and mesenchymal stem cells required for the development of odontogenic tumors and cemento-osseous dysplasias.

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Adenomatoid odontogenic tumor: Case report

Research Society and Development ◽

10.33448/rsd-v10i4.13958 ◽

2021 ◽

Vol 10 (4) ◽

pp. e11310413958

Author(s):

Karolina Braga Costa ◽

Alana Oswaldina Gavioli Meira dos Santos ◽

Muryllo Eduardo Sales dos Santos ◽

Carla Beatriz Fernandes de Oliveira ◽

Thabata Flavia Ribeiro Guimaraes da Silva ◽

...

Keyword(s):

Odontogenic Tumor ◽

Radiographic Examination ◽

White Female ◽

Anatomical Location ◽

Adenomatoid Odontogenic Tumor ◽

Second Molar ◽

Progressive Growth ◽

Maxillary Premolars ◽

Prolonged Retention ◽

The Right

The adenomatoid odontogenic tumor is a benign epithelial pathology that comprises 3 to 7% of odontogenic tumors. It has the characteristic of slow and progressive growth and almost no symptoms, being more frequent in women especially in the first two decades of life. Also, the anterior region of the maxilla is the anatomical location mostly affected. A white female patient, 16 years old, presented absence of the canine, first, and second maxillary premolars on the right side, prolonged retention of the right upper deciduous second molar, volumetric increase in the buccal and palatal alveolar ridge with extension to the bottom of the right maxillary vestibule, being diagnosed after the incisional biopsy as an adenomatoid odontogenic tumor. Considering the clinical and radiographic examination, it was decided to perform decompression of the lesion before performing enucleation and curettage.

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