Metastatic Crohn's disease.

The case of a 25-yr-old female with Crohn's disease who developed recurrent erythematous nodules on her lower extremities is described. These modules enlarged and ulcerated. Repeated bacterial, fungal, and acid-fast cultures remained negative. A skin biopsy revealed non-caseating granulomata, confirming the diagnosis of cutaneous "metastatic" Crohn's disease. The lesions completely resolved with systemic corticosteroid therapy. Although cutaneous metastatic Crohn's disease is uncommon, patients with Crohn's disease who develop unusual skin lesions that persist should have them biopsied.