[Unusual autoimmune and neoplastic associated diseases in Sjogren's syndrome].

In an unselected series of 12 patients with Sjögren's syndrome the following autoimmune diseases were observed: severe myxedema due to Hashimotos thyroiditis in four, subclinical thyroid hypofunction in one, diffuse hyperthyroidism in one, glomerulonephritis in two, chronic active hepatitis in one, lupus erythematodes disseminatus in three (one with idiopathic thrombocytopenic purpura), classical rheumatoid arthritis in two. A rare familial occurrence was seen in two sisters. The only male in this group exhibited coexistence of a benign adenolymphoma of the parotid gland (Warthin's tumor) with a malignant non-Hodgkin lymphoma.