For several winters this 30 year old farmer had developed tender purple indurated plaques on his ears while working outdoors. Last summer he developed discoid plaques on his face. Skin biopsies from plaques on his face and ears showed changes typical of lupus.. Antinuclear antibodies were negative, and his medical examination and general health were normal. Chilblain lupus usually affects the fingers and toes and less commonly the nose and ears during the cold winter months and resolves during the summer. Chilblain lupus may precede the onset of systemic lupus erythematosus by years, and a skin biopsy of the plaques will help to distinguish true cold induced chilblains or perniosis from lupus.