Abstract
Introduction: Odontoma growing in the extraosseous soft tissue is very rare. Only seven cases of peripheral odontoma have been published to date. Observation: A case of peripheral odontoma arising in the mouth floor of a 1 yearold girl is reported. On the basis of the clinical appearance and localization the first suggested diagnosis was lipoma After surgical excision the diagnosis of peripheral odontoma was proposed and confirmed by scanning electron microscopy. Discussion: Extraosseous odontoma are rarely observed. The suspected mechanism is that remnants of odontogenic epithelium entrapped in the oral soft tissues may be a potent source for peripheral odontogenic tumor differentiation. Conclusion: This case of peripheral odontoma occurring in the mouth floor is the first reported in the literature to our knowledge. Possible explanations regarding its origin lie in embryological assumptions
Highlights
Odontomas are defined as hamartomas of odontogenic origin
Complex odontomas are defined as a mixture of odontogenic tissues without dental organization
peripheral odontomas (POs) are defined as tumors with the histological characteristics of intraosseous odontomas but developing only in the soft tissue covering the teeth-bearing parts of the mandible and the maxillae
Summary
Extraosseous odontoma in the mouth floor: report of a case and literature review. Observation: A case of peripheral odontoma arising in the mouth floor of a 10 year-old girl is reported. Conclusion: This case of peripheral odontoma occurring in the mouth floor is the first reported in the literature, to our knowledge. Introduction : Les odontomes périphériques extraosseux de la cavité buccale sont extrêmement rares. Observation : Le cas d’une localisation d’un odontome périphérique au niveau du plancher buccal chez une jeune fille de 10 ans est rapporté. Les explications acceptées sont que des restes de l’épithélium odontogéniques seraient piégés au sein des tissus mous oraux et pourraient être une origine possible de tumeur odontogène périphérique. Conclusion : Ce cas clinique d’odontome périphérique extraosseux du plancher buccal est à notre connaissance le premier publié dans cette localisation.
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