proliferative fasciitis


Expand All | Collapse All

  • Names

    • proliferative fasciitis (if subcutaneous)
    • proliferative myositis (if intramuscular)

  • Clinical

    • age: older adults
    • location: extremities, trunk
    • onset: 2 month, rapid growth
    • size: < 3-5 cm

  • Histology

    • border: poorly circumscribed
    • plump spindle cells
    • large ganglion-like cells
    • mitosis without atypia
    • fibromyxoid stroma
    • can have metaplastic bone

  • Stains

    • actin+ (SMA, MSA)
    • desmin-
    • CK-, S100-
    		•