To the Editor:
We read with interest the recent letter by Nagashima, et al1, who suggested that destructive/erosive arthropathy in anti-Jo-1-positive patients with dermatomyositis (DM) sine myositis is another disease subset, classifiable as DM sine myositis overlapping with rheumatoid arthritis (RA). Moreover, the authors state that anticyclic citrullinated peptide antibodies (anti-CCP) are useful for distinguishing subluxing from destructive arthropathy in this setting. We describe our experience on the topic.
We have followed 12 anti-Jo-1-positive patients (8 women, 4 men, …
Address correspondence to Dr. Cavagna; E-mail: lorenzo.cavagna{at}unipv.it