PT  - JOURNAL ARTICLE
AU  - Philip S. Helliwell
AU  - Philip J. Mease
AU  - Oliver FitzGerald
AU  - William J. Taylor
AU  - Désirée van der Heijde
TI  - Peripheral Spondyloarthritis and Psoriatic Arthritis; Overlaps and Distinctions: A Report from the GRAPPA 2012 Annual Meeting
AID  - 10.3899/jrheum.130460
DP  - 2013 Aug 01
TA  - The Journal of Rheumatology
PG  - 1446--1449
VI  - 40
IP  - 8
4099  - http://www.jrheum.org/content/40/8/1446.short
4100  - http://www.jrheum.org/content/40/8/1446.full
SO  - J Rheumatol2013 Aug 01; 40
AB  - For over 40 years the concept of psoriatic arthritis (PsA) has slowly evolved as new knowledge has emerged. This has been facilitated by the development of new criteria for classification, improvement on existing criteria by the use of updated methodologies, and new information about the disease. At the same time, there has been discussion about categorization within the generic term spondyloarthritis. At the 2012 annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA), some of this history was reviewed, along with the current thinking about the taxonomy of PsA within spondyloarthritis.