Introduction Odontogeic myxoma (OM) is a benign tumour which usually occurs in the jaw. Histologically, this tumour is composed of spindle - to stellate-shaped cells embedded in an abundant myucoid/myxoid stroma containing only a few collagen fibrils scattered throughout the tumour. We herein report a rare case of OM which showed, as unusual feature, the presence of numerous keloidal-like collagen fibres, some of which containing calcifications. Case report A 50-year-old male came to our institutions for the evaluation of posterior maxillary swelling. The lesion had been presented for six months and had gradually increased in size. After radiographic examination, the presumptive diagnosis of odontogenic cyst or non-odontogenic tumour was proposed. Conclusion Awareness of these features is crucial to avoid misdiagnosis with other fibro-myxoid tumours. Differential diagnosis is discussed. The authors suggest that cases of OM with a significant component of collagenous fibres should be better named “odontogenic myxofibromas”.

Odontogenic Myxoma with Numerous Keloidal-like Collagen Fibres and Calcifications: Report of a Case.

MUSUMECI, GIUSEPPE
Secondo
;
Salvatorelli L;MAGRO, Gaetano Giuseppe
Ultimo
2014

Abstract

Introduction Odontogeic myxoma (OM) is a benign tumour which usually occurs in the jaw. Histologically, this tumour is composed of spindle - to stellate-shaped cells embedded in an abundant myucoid/myxoid stroma containing only a few collagen fibrils scattered throughout the tumour. We herein report a rare case of OM which showed, as unusual feature, the presence of numerous keloidal-like collagen fibres, some of which containing calcifications. Case report A 50-year-old male came to our institutions for the evaluation of posterior maxillary swelling. The lesion had been presented for six months and had gradually increased in size. After radiographic examination, the presumptive diagnosis of odontogenic cyst or non-odontogenic tumour was proposed. Conclusion Awareness of these features is crucial to avoid misdiagnosis with other fibro-myxoid tumours. Differential diagnosis is discussed. The authors suggest that cases of OM with a significant component of collagenous fibres should be better named “odontogenic myxofibromas”.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11769/15888
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