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Eicosanoid metabolism disorders
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primary hypertrophic osteoarthropathy
Pachydermoperiostosis (PDP) is a rare genetic disorder that affects both bones and skin. Other names are primary hypertrophic osteoarthropathy or Touraine-Solente-Golé syndrome. It is mainly characterized by pachyderma (thickening of the skin), periostosis (excessive bone formation) and finger clubbing (swelling of tissue with loss of normal angle between nail and nail bed).