Psoriatic arthritis is a type of inflammatory arthritis that will develop in up to 30 percent of people who have the chronic skin condition psoriasis. Psoriatic arthritis is said to be a seronegative spondyloarthropathy and therefore occurs more commonly in patients with tissue type HLA-B27.

[cleveryoutube video=”http://youtu.be/watch?M-28fVTd-sU” vidstyle=”1″ pic=”” afterpic=”” width=”” starttime=”” endtime=”” caption=”” showexpander=”off” alignment=”left” newser=””]