Ameloblastic fibroma mimicking a dentigerous cyst: a case report

IF 2 3区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Oral Surgery Oral Medicine Oral Pathology Oral Radiology Pub Date : 2025-03-14 DOI:10.1016/j.oooo.2025.01.073

Danielle Machado Farias, Anne Evelyn Oliveira Moura, Carla Isabelly Rodrigues Fernandes, Amanda Almeida Leite, Tiago Virgínio Fernandes, Gustavo Pina Godoy, Jurema Freire Lisboa de Castro

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引用次数: 0

Abstract

The ameloblastic fibroma is a rare odontogenic mixed tumor characterized by the proliferation of epithelial and ectomesenchymal components. The present case is about a 14-year-old female, with delayed eruption of right mandibular first molar and no facial asymmetries. Imaging exams showed a well-defined unilocular radiolucent lesion associated with the crown of the same unerupted tooth, causing no displacement or resorption of adjacent roots, or bulging of cortical bone. The clinical diagnosis was dentigerous cyst. The lesion was exercised, with extraction of involved tooth. Microscopic examination revealed the presence of odontogenic epithelial cords and islands, within a cellularized ectomesenchyma, without atypia. The histopathological diagnosis was ameloblastic fibroma. The patient is under regular follow-up, with bone repair and no signs of recurrence after 6 months of treatment.

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牙釉质纤维瘤是一种罕见的牙源性混合瘤，其特点是上皮和外胚层成分的增生。本病例为一名 14 岁女性，右下颌第一磨牙延迟萌出，面部无不对称。影像学检查显示，在同一颗未萌出牙齿的牙冠上有一个轮廓清晰的单室放射状病变，没有造成邻近牙根的移位或吸收，也没有造成皮质骨的隆起。临床诊断为牙源性囊肿。对病变进行了治疗，并拔除了患牙。显微镜检查发现，在细胞化的外胚层中存在牙源性上皮索和岛，无不典型性。组织病理学诊断为绒毛状纤维瘤。患者正在接受定期随访，经过 6 个月的治疗后，骨修复且无复发迹象。

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来源期刊

Oral Surgery Oral Medicine Oral Pathology Oral Radiology DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

3.80

自引率

6.90%

发文量

1217

审稿时长

2-4 weeks

期刊介绍： Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology is required reading for anyone in the fields of oral surgery, oral medicine, oral pathology, oral radiology or advanced general practice dentistry. It is the only major dental journal that provides a practical and complete overview of the medical and surgical techniques of dental practice in four areas. Topics covered include such current issues as dental implants, treatment of HIV-infected patients, and evaluation and treatment of TMJ disorders. The official publication for nine societies, the Journal is recommended for initial purchase in the Brandon Hill study, Selected List of Books and Journals for the Small Medical Library.