Figure 8a. M tuberculosis of the breast (nodular type) in a 45-year-old woman with a previous history of pulmonary tuberculosis. (a) Mammogram of the left breast shows a lobular mass with indistinct margins (although the mass is partially well defined) in the inner quadrant. The patient underwent surgical biopsy. (b) Photomicrograph (original magnification, x200; H-E stain) shows extensive granulomatous inflammation with epithelioid and Langhans giant cells. Foci of necrosis are seen in one of these granulomas (*).