摘要
Digital clubbing,which has been recognized as a sign of systemic disease,is one of the most ancient diseases.However,the pathogenesis of clubbing and hypertrophic osteoarthropathy has hitherto been poorly understood.The study of a clinically indistinguishable idiopathic form(primary hypertrophic osteoarthropathy,PHO)provides an opportunity to understand the pathogenesis of hypertrophic osteoarthropathy.Current advances in the study of PHO are discussed.The impaired metabolism of prostaglandin E2(PGE2)plays a central role in its pathogenesis.
