Atypical Fibroxanthoma in Head and Neck

Atypical fibroxanthoma is a pleomorphic spindle cell tumor of the dermis and it's been known to be a benign lesion clinically in spite of malignant histologic features. But recurrence is estimated at between 2%-20% and metastasis has been reported. We are about to describe a 70-year-old man with the lesion developed on the left infra-auricular area. The lesion was located superficially and is composed of compact pleomorphic spindle cells and several bizarre multinucleated giant cells. The patient was treated with wide excision. We would like to discuss about this case with a review of literatures.