Assao Agnes, Freitas Diogo Loureiro de, Oliveira Denise Tostes
Department of Surgery, Stomatology, Pathology and Radiology, Area of Pathology, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo 17012-901, Brazil.
Department of Oral and Maxillofacial Surgery of the University of Biomedical Sciences of Cacoal, Avenida Cuiabá, 3087, Cacoal, Rondônia 76963-665, Brazil.
Int J Surg Case Rep. 2017;39:245-249. doi: 10.1016/j.ijscr.2017.08.020. Epub 2017 Aug 24.
The adenomatoid odontogenic tumor (AOT) associated with odontoma has been described as a new entity with overlapping features of adenomatoid-like structures and odontoma. Presentation of the case: We report the second case of AOT associated with odontoma in the posterior maxillary region. A 22-year-old patient presented expansion of the vestibular and palatine cortical wall of maxilla. Radiographic examination and computed tomography confirmed erosion of maxillary walls, root resorption, displacement of a neighboring tooth and radiopacities within the lesion. Histopathological analysis showed a cystic cavity lined by odontogenic epithelium, organized as duct like structures and tubular dentin. The diagnosis established was AOT associated with odontoma.
As fewer cases have been described, the aim of this study is to report clinical behavior and evolution of adenomatoid odontogenic tumor associated with odontoma, as it have not yet been described and its origin is not completely established. The hamartomatous or neoplastic origin of this tumor is under debate.
Therefore, it is necessary similar cases to be published to increase the knowledge about the clinical behavior and evolution of this tumor, to enable such lesions to be more clearly defined in the next classification of odontogenic tumors.
与牙瘤相关的腺样牙源性肿瘤（AOT）已被描述为一种具有腺样结构和牙瘤重叠特征的新实体。病例报告：我们报告了上颌后部区域第二例与牙瘤相关的AOT病例。一名22岁患者出现上颌前庭和腭侧皮质壁膨隆。影像学检查和计算机断层扫描证实上颌壁侵蚀、牙根吸收、邻牙移位以及病变内的不透光区。组织病理学分析显示一个由牙源性上皮衬里的囊性腔隙，呈导管样结构和管状牙本质。确诊为与牙瘤相关的AOT。
由于所描述的病例较少，本研究的目的是报告与牙瘤相关的腺样牙源性肿瘤的临床行为和演变情况，因为其尚未被描述且起源尚未完全明确。该肿瘤的错构瘤性或肿瘤性起源存在争议。
因此，有必要发表类似病例以增加对该肿瘤临床行为和演变的认识，以便在牙源性肿瘤的下一次分类中更明确地界定此类病变。
