Rheumatoid nodulosis. Sporadic and familial diseases.

Two patients are described with longstanding, multiple, subcutaneous nodules with the histopathological features of rheumatoid nodules. Neither patient had any clinical evidence of rheumatic disease. One patient had a family history of smiliar nodules transmitted as an autosomal dominant trait. Leukocyte function studies failed to reveal any defect to account for the nodule formation.