Pachydermoperiostosis -A Case Report-

Pachydermoperiostosis is a syndrome characterized by clubbing of the digits, periosteal new bone formation, and coarsening of the facial features.The patient is a thirty-one years old man with hydrops of left knee. This case is typical, and has all abnormalities of digits, skin, and diaphyseal bone.We showed this case and discussed the pathogenesis.