Abstract
Introduction: Oral focal mucinosis (OFM) is an uncommon soft tissue lesion of unknown etiology. It is presented as a harmless swelling that can be sessile or pedunculated. Histologically, OFM is characterized by focal myxoid degeneration of the connective tissue. The diagnosis of the lesion is established based on the histopathological analysis. OFM is treated with surgical excision and its recurrence is unreported. Case Presentation: In the present case report, a 53-year-old female presented with a lesion on the gingiva around the dental area of 44 and 45 that was clinically similar to irritation fibroma. An excisional biopsy was performed and the diagnosis was OFM based on the clinical and pathological findings. Conclusions: This case report emphasizes that it is nearly impossible to predict the detection of OFM. Therefore, although OFM is a rare lesion, it should be distinguished from other similar soft tissue lesions in the oral cavity.
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