scholarly journals Adenomatoid odontogenic tumor: Case report

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 ◽  
...  

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.

2021 ◽  
Vol 156 (Supplement_1) ◽  
pp. S88-S89
Author(s):  
A Lazim ◽  
R Kuklani ◽  
D Sundararajan

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.


2015 ◽  
Vol 27 (3) ◽  
Author(s):  
Aris Munandar ◽  
Endang Syamsudin ◽  
Melita Sylvyana ◽  
Kiki Akhmad Rizki

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.


2020 ◽  
Vol 4 (2) ◽  
pp. 21
Author(s):  
Ratih Trikusumadewi Lubis ◽  
Fadhlil Ulum Abdul Rahman ◽  
Muhammad Adri Nurrahim ◽  
Lusi Epsilawati ◽  
Eka Marwansyah Oli'i

Objectives: To view a case report of mandibular ossifying fibroma (OF) in pediatric male. Case Report: A 12 year old child came to RSHS with a panoramic radiograph with the chief complaint of swelling in the right mandible. Panoramic radiograph shows well-defined mixed lesions with radiolucent content and snowflake-like opaque. MDCT shows a superior-inferior and bucco-lingual extension of the lesion. The suspicion of this case leads to Ossifying Fibroma with differential diagnosis of Adenomatoid Odontogenic Tumor (AOT) and Calcifiying Ephitelial Odontogenic Tumor (CEOT). Conclusion: OF cases in children, especially mandibular, are very rare, where the characteristics of the lesion can be well defined through the help of panoramic radiographs and MDCT. OF is a lesion that has benign characteristics with well-defined borders, and the most important lies in the presence of wrapping capsules and mixed internal structures accompanied by snowflake-like calcification.


2016 ◽  
Vol 19 (3) ◽  
pp. 101
Author(s):  
Angélica Mandú ◽  
Amanda Katarinny Gonzaga ◽  
Maria Luiza Lopes ◽  
Luciana Eloísa Nóbrega ◽  
Antonio Costa

<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>


2011 ◽  
Vol 1 ◽  
pp. 64 ◽  
Author(s):  
Pavitra Baskaran ◽  
Satyaranjan Misra ◽  
M. Sathya Kumar ◽  
R. Mithra

Adenomatoid odontogenic tumor (AOT) is an uncommon, hamartomatous, benign, epithelial lesion of odontogenic origin that was first described by Driebaldt in 1907, as a pseudo-adenoameloblastoma. The current World Health Organisation (WHO) classification of odontogenic tumors defines AOT as being composed of the odontogenic epithelium in a variety of histoarchitectural patterns, embedded in mature connective tissue stroma, and characterized by slow, but progressive growth. The current article reports two cases with different presentations; first in a young female patient and the second in a middle-aged male patient. The importance of biopsy, which is the gold standard for diagnosis, and its use in planning of the treatment is discussed.


2020 ◽  
Vol 27 (2) ◽  
Author(s):  
Lia Desire Octarina ◽  
◽  
Tri Endra Untara ◽  
Ema Mulyawati ◽  
◽  
...  

Four rooted maxillary second molar is a rare condition. A research of 1,200 maxillary second molars found only 0.4% of the sample with this condition. In a tooth with two palatal roots, one of them is the normal palatal root, while the other is a supernumerary structure which can be found mesiolingually (radix mesiolingualis) or distolingually (radix distolingualis). Objective: to describes a successful root canal treatment of a maxillary second molar with radix mesiolingualis. Final restoration using a short fiber-reinforced composite as the bottom structure under the onlay composite direct restoration. Case report: A 39-year old female patient complained of pain continuously for the past two weeks in her right maxillary second molar (tooth #17). Clinical examination revealed a deep mesioocclusal caries lesion and presence of extra cusps on the palatal surface of the crown. Conclusion: Crown with extra cusps relatively larger compared to a normal crown. It could be indicated the additional palatal roots. Those variations could be identified by clinical and radiographic examination, while more accurate assessment with CBCT imaging. The right material was required to support function and strengthen the tooth after root canal treatment.


2020 ◽  
Vol 47 (1) ◽  
pp. 87-92
Author(s):  
Dohee Sim ◽  
Yonjoo Mah

Adenomatoid odontogenic tumor (AOT) is a rare benign odontogenic jaw lesion. It usually occurs in the anterior maxilla and is mostly related to impacted canines in teenagers.<br/>A 3-year-old girl was referred from a local dental clinic due to delayed eruption of the right primary mandibular 2nd molar. There was no history of pain or swelling. Radiography revealed a large radiolucency lesion with radiopacities around the unerupted right primary mandibular 2nd molar. Surgical enucleation with extraction of the right primary mandibular 2nd molar and surgical biopsy were performed. Based on the clinical and radiological findings, this lesion was defined as an ameloblastic fibro-odontoma which often develops in the mandible of adolescents. However, this lesion was diagnosed as AOT from the results of the histological examination.<br/>This report aimed to present a rare case of AOT in the posterior mandibular area in a very young patient.


2015 ◽  
Vol 9 (1) ◽  
pp. 340-345 ◽  
Author(s):  
Gita Rezvani ◽  
Mandana Donoghue ◽  
Peter A Reichart ◽  
Neda Pazuhi

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.


2017 ◽  
Vol 65 (1) ◽  
pp. 92-95
Author(s):  
Francisco Paulo Araújo MAIA ◽  
Priscilla Sarmento PINTO ◽  
Anibal Henrique Barbosa LUNA

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.


2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Davide Musu ◽  
Giulia Bardini ◽  
Hagay Shemesh ◽  
Claudia Dettori ◽  
Elisabetta Cotti

Traumatic bone cyst (TBC), a “pseudocyst” that usually affects long bones, is a rare lesion among cystic lesions in the jaws. The most commonly affected site is the posterior mandible. Most of the time, TBC is asymptomatic and discovered during routine radiographic examination. The treatment recommended for TBC is surgical exploration followed by curettage of the bony walls, which also serves as a diagnostic procedure. A 27-year-old Caucasian male with a noncontributory medical history was referred to our department for the endodontic evaluation of the mandibular right first and second molars, which were connected to an extensive asymptomatic osteolytic lesion. A multimodular diagnostic assessment involving CBCT imaging, ultrasound, and histopathologic examination led to a definite diagnosis of a TBC overlapping with apical periodontitis (AP). Subsequently, a multidisciplinary treatment approach was performed, including surgical excision and biopsy of the lesion, endodontic retreatment of the right mandibular first molar, and postsurgical root canal treatment of the second molar. During the follow-up period of five years, the patient was reassessed periodically once a year and showed, in the absence of signs and symptoms, progressive healing of the affected area. The present article reports a case following the CARE guidelines of a TBC combined with AP where a multimodular diagnostic assessment was performed and discusses the possible pathogenetic mechanisms involved in its generation.


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