Seronegative spondyloarthropathy of familial Mediterranean fever.

Familial Mediterranean fever (FMF) is characterized by an autosomal inheritance pattern, Mediterranean ancestry, and history of recurrent fever. We present a 30-year-old Turkish man with FMF and accompanying seronegative spondyloarthropathy. His diagnose depended on the clinical course of his disease: recurrent fever accompanied by abdominal pain attacks together with a positive family history and his ethnic origin and sacroiliitis. We review the common manifestations of FMF and remind physicians that sacroiliac joint involvement must be kept in mind in presence of articular symptoms in a FMF patient.