TY - JOUR T1 - Psoriatic Arthritis and Sonographic Entheseal Index JF - The Journal of Rheumatology JO - J Rheumatol SP - 2045 LP - 2045 DO - 10.3899/jrheum.120634 VL - 39 IS - 10 AU - FUAT OZKAN AU - MEHMET INCI AU - KEMAL OZYURT AU - BETUL BAKAN Y1 - 2012/10/01 UR - http://www.jrheum.org/content/39/10/2045.1.abstract N2 - To the Editor:We read with great interest the recent article, “Identification of the Clinical Features Distinguishing Psoriatic Arthritis and Fibromyalgia” by Marchesoni, et al1. However, we have some doubts about their results. They reported that Achilles tendon entheses were not significantly more involved in patients with psoriatic arthritis (PsA), because of the infrequent involvement of this tendon in these patients. This is an intriguing finding. The Achilles tendons are among the most frequent sites of enthesopathic involvement in PsA, and are reported in … Address correspondence to Dr. Ozkan, Kahramanmaras Sutcu Imam University, Faculty of Medicine, Department of Radiology, 46050 Kahramanmaras, Turkey. E-mail: drfozkan{at}yahoo.com ER -