Mixed connective tissue disease--an apparently distinct rheumatic disease syndrome associated with a specific antibody to an extractable nuclear antigen (ENA).

Adolescent Adult Aged Antibodies, Antinuclear Antibody Specificity Collagen Diseases/diagnosis,drug therapy,immunology Complement Fixation Tests Cyclophosphamide/therapeutic use Diagnosis, Differential Female Fluorescent Antibody Technique Hemagglutination Tests Humans Immunodiffusion Lupus Erythematosus, Systemic/diagnosis Male Middle Aged Myositis/diagnosis Prednisone/therapeutic use Rheumatic Diseases/diagnosis,drug therapy,immunology Scleroderma, Systemic/diagnosis Thymus Gland/immunology

Antibodies, Antinuclear Cyclophosphamide Prednisone