<prompt> Features of seronegative spondyloahropathy include all of the following, Except:Strong association with HLA B27Negative Rheumatoid FactorSymmetrical PolyahritisEnthesitis  <response>: Answer is C Symmetrical Polyahritis: Seronegative spondyloahropathies are usually associated with Asymmetrical Oligoahritsis and not symmetrical polyahritis. The seronegative spondyloahritis have the following in common: Negative RF Strong association with HLA-B27 antigen Oligoahritis asymmetrical Enthesitis inflammation at sites of inseion of fascia, ligament or tendon to bone Inflammatory ahritis axial and sacroiliac joints Extra-aicular features eyes, skin, genitourinary tract Familial predisposition 