| dermatofibrosarcoma | A fibrosarcoma of the skin, beginning most often as an indurated nodule that grows slowly and hence is often ignored until it grows large. Dermatofibrosarcomas show an extremely aggressive tendency to invade local surrounding tissue. They do not metastasize, however, even after multiple recurrences. About 50% will recur after simple incision; hence wide excision should be resorted to. (devita jr et al., cancer: principles & practice of oncology, 3d ed, p1356) (12 Dec 1998) |
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| dermatofibrosarcoma protuberans | A relatively slowly growing dermal neoplasm consisting of one or several firm nodules that are usually covered by dark red-blue skin, which tends to be fixed to the palpable masses; histologically, the neoplasm resembles a cellular dermatofibroma with a pronounced storiform pattern; metastases are unusual, but the incidence of recurrence is fairly high. (05 Mar 2000) |
| pigmented dermatofibrosarcoma protuberans | An uncommon variant of dermatofibrosarcoma protuberans containing heavily pigmented dendritic melanocytes scattered between spindle cells of the tumour. Synonym: Bednar tumour, storiform neurofibroma. (05 Mar 2000) |
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