Lascane Nelise Alexandre da Silva, Sedassari Bruno Tavares, Alves Fábio de Abreu, Gallottini Marina Helena Cury, de Sousa Suzana Cantanhede Orsini Machado
Department of Oral Pathology, Dental School, University of São Paulo, São Paulo, SP, Brazil.
Department of Oral Diagnosis, Dental School, University of São Paulo, São Paulo, SP, Brazil.
Braz Dent J. 2014;25(3):253-6. doi: 10.1590/0103-6440201300024.
Peripheral ameloblastoma is a rare extraosseous counterpart of central ameloblastoma that occurs in soft tissues and may cause bone crest resorption. This study reports a peripheral ameloblastoma on the buccal gingiva of a 56-year-old man, which presented extensive squamous metaplasia areas, keratinization and dystrophic calcifications in the neoplastic islands. It is emphasized the need of a detailed imaging study and a long follow-up period to exclude bone involvement whenever peripheral ameloblastoma diagnosis is considered.
外周型成釉细胞瘤是中央型成釉细胞瘤罕见的骨外对应物，发生于软组织，可导致牙槽嵴吸收。本研究报告了1例发生于56岁男性颊侧牙龈的外周型成釉细胞瘤，其肿瘤岛出现广泛的鳞状化生区、角化及营养不良性钙化。强调在考虑诊断外周型成釉细胞瘤时，需要进行详细的影像学检查及长期随访以排除骨受累情况。
