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dermatofibrosarcoma protuberans
Dermatofibrosarcoma protuberans (DFSP) 〔 Review.〕
is a very rare tumor. It is a rare neoplasm of the dermis layer of the skin,〔(【引用サイトリンク】title=Dorlands Medical Dictionary:dermatofibrosarcoma )〕 and is classified as a sarcoma. There is only about one case per million per year. DFSP is a fibrosarcoma, more precisely a cutaneous soft tissue sarcoma. In many respects, the disease behaves as a benign tumor, but in 2–5% of cases it can metastasize, so it should be considered to have malignant potential. It occurs most often in adults in their thirties; it has been described congenitally, in children, and the elderly. It accounts for approximately 2–6% of soft tissue sarcoma cancers.
==Diagnosis==
Dermatofibrosarcoma protuberans is diagnosed with a biopsy, when a portion of the tumor is removed for examination. In order to ensure that enough tissue is removed to make an accurate diagnosis, the initial biopsy of a suspected DFSP is usually done with a core needle or a surgical incision.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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