SINONASAL NODULAR FASCIITIS: CASE PRESENTATION AND LITERATURE REVIEW

Nodular fasciitis (NF) is a lesion of myofibroblasts and fibroblasts, characterized by proliferating, mitotically active spindle cells arranged in short, irregular bundles. The entity simulates sarcoma due to the hypercellularity, mitoses, and infiltrative growth pattern. NF is often self-limiting and exhibits the MYH9-USP6 gene fusion, first identified in 2011. The molecular findings suggest NF is a transient neoplasm. NF is most commonly found in the subcutaneous tissues of the upper extremities and in the head and neck region overlying bone. Intraoral presentation of nodular fasciitis is rare and sinonasal manifestation rarer still.