Nodular fasciitis of soft tissue over the mandible.

Nodular fasciitis (NF) is an unusual, benign condition which can mimic more sinister, sarcomatous lesions both clinically and histologically. This case report presents a 35-year-old male, with a rapidly growing mass on the border of his left mandible, referred to a specialist head and neck unit. The initial presentation, radiology and cytology were initially inconclusive and the possibility of a malignant process was considered. Final histology was that of NF, the treatment of which is complete surgical excision. Therefore, NF is an important differential to consider when assessing similar clinical presentations, as highlighted in this case report.