Breast metastases from lung carcinomas: a report of three cases

Tumours metastasising to the breast are very infrequent, with an incidence of 0.4-6.6% of all breast tumours. Occasionally a breast mass is the first indicator of a tumour arising elsewhere. Development of metastases to the breast from a lung cancer is very rare and the prognosis for such patients is poor. We present three patients who had metastases to the breast presenting clinically as the primary origin. It is important to distinguish a primary breast cancer from a metastasis, as different therapies are offered with considerably different outcomes.