Abstract
To the Editor: I read with interest the article by Marchesoni, et al 1 in which the authors state that the features distinguishing fibromyalgia syndrome (FM) from psoriatic arthritis (PsA) were the number of FM-associated somatic symptoms and tender point count, not the Maastricht Ankylosing Spondylitis Enthesitis Score (MASES)2. But the alternative diagnostic criteria for FM, the American College of Rheumatology (ACR) 2010 criteria3, are based on patient self-assessment without any tender point count. On the other hand, there is an argument for the somatic symptoms of 41 items that are considered specific for FM4, but Marchesoni, et al considered them as confusing the … Address correspondence to Dr. Konno; E-mail: taiki{at}snow.plala.or.jp
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