Leprosy - an unusual cause of a suspicious nodule on mammography.

Abstract A routine mammogram identified changes thought to be due to a lymph node which was confirmed on biopsy. The lymph node was infiltrated with macrophages and showed fragmented acid-fast bacilli. The patient had been treated for leprosy some years before and was still taking thalidomide for erythema nodosum leprosum. Leprosy associated lymphadenopathy may be identified on routine breast screening.