myopericytoma


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  • Clinical

    • site: distal extremity predilection
    • size: < 2cm

  • Histology

    • pattern: concentric growth around vessels. Can have whirls.
    • cytology: oval-spindle cells

  • Stains

    • positive: SMA
    • can have focal CD34, desmin
    • negative: S100, CK
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