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Chilblains are inflammatory lesions of the skin that appear on the acral surfaces during cold and humid weather. Chilblains may be associated with connective tissue disease, particularly when they follow a prolonged course rather than resolving within several days. In 1888, Hutchinson described a variant that occurred in patients with lupus erythematosus (LE), termed chilblain LE. To better define this condition and to determine the frequency of LE in patients with severe chilblains, researchers studied 33 patients seen in the department of dermatology of the Hôpital Saint-Louis, Paris. They divided the patients into 3 groups: those with idiopathic chilblains (11), those with atypical chilblains (10), and those with chilblain LE (12).
The 22…