[Kikuchi's disease. A rare cause of fever, lymphadenopathies and polyarthritis]. / Doença de Kikuchi. Uma causa rara de febre, linfadenopatias e poliartrite.

This is a case report of a 29-year-old white female patient with Kikuchi's disease, presenting fever, polyarthritis, lymph gland enlargement, anemia, leucopenia with a relative lymphocytosis, altered liver function tests and circulating immune complexes. A literature review is made with emphasis on the etiology, clinical course and pathogenesis of this illness.

Relapsing polychondritis and Reiter's syndrome.

We describe a case of relapsing polychondritis associated with Reiter's Syndrome in a 46-year-old white man. Relapsing polychondritis is a rare disorder of unknown etiology associated in about 30% of cases with other rheumatic disorders such as connective tissue diseases, vasculitis and exceptionally, seronegative spondyloarthritis. We found this association only once in our review of the literature.