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Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Oct;110(4):e75-8. doi: 10.1016/j.tripleo.2010.04.002. Epub 2010 Jul 31.

Oral focal mucinosis associated with cervical external root resorption: a case report.

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Department of Periodontology, School of Graduate Dentistry, Rambam Health Care Campus, and Technion, Faculty of Medicine, Haifa, Israel.



Oral focal mucinosis (OFM) and cervical external root resorption are both rare lesions with an unknown etiology. In this article we report on a rare occurrence of OFM associated with cervical external root resorption.


A 44-year-old female patient presented with sharp pain while drinking cold beverages and a firm localized gingival overgrowth adjacent to the buccal aspect of tooth #19. An excisional biopsy of the gingival lesion was taken and a deep cavity was found in the buccal aspect of the root. The cavity was restored with an amalgam filling.


The histological findings were of a well-circumscribed lesion composed of myxomatous connective tissue, which contained numerous stellate-shaped fibroblasts. Based on the findings, a diagnosis of OFM was made.


A rare case of OFM and cervical external root resorption occurring in the same site was described. A possible link between these 2 phenomena was hypothesized.

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