Senile erythroderma with serum hyper IgE.

Eight patients with senile erythroderma with serum hyper IgE were studied. Characteristic laboratory findings were persistently elevated IgE levels, high peripheral-blood eosinophils, and high lactic dehydrogenase (LDH). Immunologic analysis using immunoglobulin antibodies showed frozen sections of inguinal lymph nodes to stain with anti-IgE antibody, particularly in the germinal center. Five of the patients had an atopic history, suggesting hereditary factors.