Mondor's disease associated with breast cancer.

An unusual case of Mondor's disease associated with carcinoma of the breast is reported. "Forked string" and "triple beads" have been reported previously in this disease. In this patient, however, one of the "beads" of her triple beads was malignant. It is suggested that biopsy and histologic examination are the best course of action for Mondor's disease associated with beads.