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atypical fibroxanthoma

 

Definition: a solitary, often ulcerated, small, cutaneous, usually benign tumor composed of foamy histiocytes, spindle cells, and bizarre giant cells; usually found on the exposed skin of older people; microscopically, atypical fibroxanthoma closely resembles malignant fibrous histiocytoma, but originates in the dermis.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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