fibroma of tendon sheath


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  • Clinical

    • age: usually 40s
    • location: hand, favors right 4th finger
    • size: < 3 cm

  • Histology

    • architecture: nodules
    • fibroblasts
    • stroma: collagen, slit vasculature, may have bizarre cells
    • may have myxoid change, cyst, hyalin
    • may have metaplastic cartilage or bone
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