<prompt> The following diseases are associated with HLA B27 and uveitis ExceptBechets syndromeReiters syndromePsoriasisAnkylosing spondylitis  <response>: Features of seronegative spondyloahroahropathiesOnset usually before 40 yearsAbsence of RA factorHLA- B27 positivePresence of uveitisExamples:- ankylosing spondylitis, Reitters syndrome, Psoriatic ahritis, enteropathic ahritis, Reactive ahritis.Refer: Mohindras Fundamentals of Ohopedics, 2nd edition, pg no. 302, 426 