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Superficial thrombophlebitis of the breast, often referred to as Mondor disease of the breast, is a benign and self-limited thrombophlebitis of the superficial veins of the breast and/or anterolateral chest wall. The exact etiology is unknown, but it may be associated with trauma (including breast surgery and radiation). The condition characteristically manifests with the sudden onset of a tender cord-like induration. Although the diagnosis is primarily clinical, age-appropriate breast imaging is required in all patients to rule out concomitant breast cancer. On imaging, superficial thrombophlebitis typically appears as a superficial dilated tubular structure with a characteristic beaded appearance; an intraluminal thrombus may be visible on Doppler ultrasound. Management is mainly supportive.
- Primarily a clinical diagnosis
Perform age-appropriate breast imaging in all patients to exclude underlying malignancy 
- Breast ultrasound findings:
- Mammography findings: often normal, but a superficial tubular structure with a beaded appearance may also be seen