Tuberculosis of the breast: a rare modern disease

A case of mammary tuberculosis is reported. A communication between the axillary glands and the breast emphasises Cooper's theory that the breast becomes secondarily involved by lymphatic extension. Involvement of other organs by acid-fast bacilli could not be demonstrated. A relapse occurred sixteen months after a 6-month course of treatment with rifampicin, isoniazid, ethambutol and pyrazinamide.