Hypertrophic osteoarthropathy

Typical hypertrophic osteoarthropathy seen as thickened periosteum.

Differential diagnosis of hypertrophic osteoarthropathy

  • HPOA (Lung cancer) (symmetrical, usually involves proximal large bones)
  • Thyroid acropachy (normally symmetrical and involves distal small bones)
  • Pachydermoperiostosis (primary hypertrophic osteoarthropathy, suspect in younger patients, can involve small tubular bones)
    – Involvement of epiphysis distinguishes it from secondary form of hypertrophic osteoarthropathy

    From http://www.nejm.org/doi/full/10.1056/NEJMicm1309107
  • Rarely hypervitaminosis A

Capture

Reference: radiopaedia.org

ypical

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