Urticarial vasculitis progressing to systemic lupus erythematosus.

We encountered a patient with urticarial vasculitis. The lesions were urticarial target-shaped, lasting approximately 48 to 72 hours, accompanied by burning, photophobia, fever, and arthralgia. Initially, all studies for thyroid disease and lupus erythematosus were negative. However, after 20 months of follow-up, the patient developed autoimmune thyroidosis and systemic lupus erythematosus. We describe an unusual progression of this disease.