Metastatic cutaneous Crohn's disease of the nipple: report of a case.

A case of cutaneous Crohn's disease involving the right breast and presenting as multiple periareolar fistulas in a 46-year-old female is reported. The lesion had initially been diagnosed and treated as a simple abscess. She had a 26-year history of Crohn's disease with numerous hospitalizations for bowel resections and control of diarrhea. Histopathologic examination following excision of the fistulas and total duct excision, however, showed well-defined granulomas containing multinucleated giant cells characteristic of extraintestinal Crohn's disease.