Journal of

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Familial Mediterranean fever (FMF) is a hereditary condition which is characterized by recurrent episodes of fever and abdominal pain. On the other hand, Behcet`s disease (BD) is an immune mediated condition typified by recurrent oral aphthous lesions, inflammatory eye disease and multiple organ involvement. Association of these two conditions is rare. We present a pair of twins with FMF and BD in their mother.