[Immunological tests in the diagnosis and prognosis of disseminated lupus erythematosus, before treatment (author's transl)].

Sixty-four patients classified according to clinical manifestations, and renal pathological lesions have been submitted to a detailed immunological study before treatment. Four tests have provided significant correlations: antinative DNA antibodies (studied by a Farr test), C3, E rosette and cryoglobulins. The simultaneous considerations of these 4 parameters is however necessary in a given patient because each of them, taken separately, has no absolute value and may sometimes be clearly abnormal in patients with apparently benign outcome.