RT Journal Article SR Electronic T1 Psoriasis induced by infliximab in a Saudi patient with ankylosing spondylitis JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 1054 OP 1056 VO 31 IS 9 A1 Alabed, Iehab B. A1 Qushmaq, Khalid A. A1 Khan, Muhammad A. YR 2010 UL http://smj.org.sa/content/31/9/1054.abstract AB Although the therapeutic uses of tumor necrosis factor alpha antagonists have added a highly effective treatment of ankylosing spondylitis and associated spondyloarthropathies, they are associated with many untoward effects. We describe a Saudi patient with ankylosing spondylitis who developed severe psoriatic lesions in treatment with infliximab. He had no personal, or family history of psoriasis, and no other triggering factors known to induce psoriasis.