Breast cancer and Poland's syndrome: a case report and literature review.

Poland's syndrome is a rare congenital development malformation characterized by unilateral chest wall hypoplasia and ipsilateral hand abnormalities. It is also known to be associated with some malignant diseases. We herein report a case of Poland's syndrome associated with invasive ductal carcinoma of breast, and review the literatures to investigate the clinical characteristics of breast cancer with Poland's syndrome.