Mondor's disease associated with metastatic lung cancer in the breast.

We report what we believe is the first recorded case of Mondor's disease associated with metastatic lung cancer presenting in the breast. An association between Mondor's disease and primary breast cancer has been described previously. In patients with Mondor's disease and primary breast cancer has been described previously. In patients with Mondor's disease the possibility of underlying carcinoma, either primary or secondary, must be considered.