Clinics in diagnostic imaging (35). Metastases to the breasts, skin and bone

A 46-year-old woman presented with multiple skin lumps and right hip pain. Multiple nodules were palpable in the skin over the chest and abdominal wall, and in both breasts. Bilateral mammograms showed multiple solid masses, while ultrasound demonstrated multiple subcutaneous nodules. An osteolytic lesion was seen on the right hip radiograph. Excisional biopsy of a subcutaneous nodule revealed metastatic adenocarcinoma. The diagnosis of metastases to the breast is discussed, together with imaging features of other multiple breast lesions, such as fibroadenomas and cysts.