Primary breast tuberculosis masquerading as carcinoma.

Although tuberculosis is a very common disease in endemic areas, isolated involvement of the breast is very rare. Any form of tuberculous mastitis may present with features of malignancy. Diagnosis is mainly based on identification of tubercle bacilli. We report a 50-year-old woman with primary tuberculous abscess of the breast which simulated carcinoma on mammography, and describe the importance of ultrasonography in differentiating abscess from malignancy.