Lofgren's syndrome.

Lofgren's syndrome consists of a triad of erythema nodosum, bilateral hilar adenopathy, and arthritis and heralds the acute onset of sarcoidosis. A single symptom may be misdiagnosed and mistreated by an unsuspecting physician. We present a case of Lofgren's syndrome that was initially believed to be cellulitis. We briefly review the course and treatment of Lofgren's syndrome.