[A woman with a palpable abnormality in the breast].

Mondor's disease is a rare benign condition characterized by thrombophlebitis of superficial veins of the chest and the breast. Typically, there is a spontaneous onset of tenderness and redness due to a cord-like induration on the lateral thoracic wall. It is a self-limiting disease that should be distinguished from breast cancer. In general, the combination of clinical symptoms and mammography confirms the diagnosis.