Figure 3b. Wegener granulomatosis in a post-menopausal woman with well-known systemic disease. The diagnosis was confirmed at subsequent core-needle biopsy. (a) Mammogram shows a suspicious focal asymmetric density (arrowheads). (b) Ultrasonographic (US) image demonstrates an irregular hypoechoic mass. (c) Photomicrograph (original magnification, x400; H-E stain) reveals a severe inflammatory reaction with numerous eosinophils and a prominent granulomatous component.