title: Acute monocytic arthritis.
abstract: Five patients with the triad of fever, skin rash, and acute polyarthritis were studied with regard to synovial fluid analysis. All cases revealed inflammatory effusions with a predominant monocytosis. Skin biopsies from two cases and synovial membrane biopsy from one case revealed a nonnecrotizing vasculitis. Although the etiology of this syndrome was not ascertained, it bears striking similarities to certain viral arthritides. It also deserves consideration as a form of acute hypersensitivity angiitis.
mesh_terms: D000328:Adult; D001168:Arthritis / Q000150:complications / Q000473:pathology; D003872:Dermatitis / Q000150:complications; D005260:Female; D005334:Fever / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged; D009000:Monocytes; D012621:Seasons; D013582:Synovial Fluid / Q000166:cytology*; D013583:Synovial Membrane / Q000473:pathology*; D014657:Vasculitis / Q000150:complications