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myxofibrosarcoma

[mĭk′sō-fī′brō-sär-kō′mə]
n.
  1. A fibrosarcoma in which degenerative change or growth of less differentiated anaplastic cells results in portions that resemble primitive mesenchymal tissue.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.