desmoplastic fibroblastoma


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  • Clinical

    • male > female
    • 50-70s
    • location: subcutaneous, 25% intramuscular
    • size: 1-4 cm, can be much larger

  • Histology

    • paucicellular, fibroblasts
    • collagen background, focal myxoid

  • Stains

    • vimentin+
    • SMA+
    • occasionally CK+
    • desmin-, S100-, SMA-, CD34-

  • Ddx

    • desmsoid tumor
      • higher cellularity
      • fascicular pattern
    		•