[LE cells in the synovial fluid]

The occurence of LE cells in the synovial fluids of two patients is reported. The demonostration of LE cells in synovial exudate is clinically valuable. Examination of joint fluid should therefore pay attention to the search for LE cells and their precursors. Reoccurrence of E-cells in the synovial fluid indicates their origin in the joint cavit. They could still be found even after multiple intraarticular injections of triamcinolone acetonide.