myofibroma


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  • Clinical

    • location: (sub)cutaneous, intramuscular, aponeuroses. Rare bone involvement.
    • size: 0.5-7 cm

  • Histology

    • myofibroblasts
    • fascicles, whorls
    • can hyalinize, calcifications, necrosis, apoptosis
    • no significant atypia

  • Stains

    • vimentin+, SMA+
    • CK-, S100-, EMA-
    		•