Ankylosing spondylitis. An unusual manifestation of familial Mediterranean fever. Report of a case complicated by amyloidosis and polyneuropathy.

We report a case of familial Mediterranean fever (FMF) with typical clinical and roentgenological findings of ankylosing spondylitis. The spinal involvement in FMF is discussed. A second unusual feature of this case is the occurrence of polyneuropathy which could possibly be ascribed to the slowly evolving amyloidosis during continuous colchicine treatment.