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PachydermoperiostosisPachydermoperiostosis. Hypertrophic osteoarthropathy is divided into primary and secondary forms. ... forms. Pachydermoperiostosis (PDP), the ...
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Hypertrophic Osteoarthropathy...osteoarthropathy (PHO) (also called primary pachydermoperiostosis)occurs without any underlying cause...scalp produces a form of cutis verticis gyrata. ...