Fibrous Focal Hyperplasia: A Case Report

Aim: Aim of this case report is to present a case of irritation fibroma on the palate.

Presentation of Case: Intra oral examination revealed an overgrowth on anterior palatal tooth region. The lesion was well defined, solitary and firm in nature, fibrotic in consistency and sessile in attachment. The color of lesion was similar to adjacent mucosa. Histopathological report revealed an atrophic parakeratinized stratified squamous epithelium with elongated rete pegs. The underlying connective tissue is fibrocellular with dense wavy bundles of collagen fibers interspersed with varying amount of fibroblast. Presence of blood vessels with RBC’s were also evident.

Discussion: Traumatic or irritation fibroma is a benign fibrous connective tissue tumor seen in oral cavity. These lesions are mostly hyperplastic reactions in response to chronic irritation or stimuli. It occurs most frequently on the buccal mucosa, gingiva, tongue and lips but can occur at other soft tissue sites in the oral cavity. Clinically the lesion may have similarity with other hyperplastic lesions or true neoplasm therefore histopathological diagnosis is necessary to differentiate the lesion. Histopathologically irritation fibroma is characterized by well defined bundles of collagen fibers and fibroblast proliferation.

Conclusion: Treatment of irritation fibroma requires complete excision of the lesion with scalpel, electrocautery or soft tissue Lasers. However the cause of irritation should also be eliminated to prevent the likelihood of recurrence. Based on clinical and radiographic examination it was diagnosed as fibrous focal hyperplasia.