A 34-year-old woman, who has a positive family history for breast cancer, presented with a palpable, painful cord associated with a skin discoloration on her left breast. Physical examination revealed palpable cord-like structure with localised tenderness in the left breast at twelve o’clock position. MLO mammography showed a superficial tubular density in the superior aspect of the left breast (arrow). Anterior to the tubular density, there was a minimal focal skin thickening (Fig. A). Ultrasonography also showed skin thickening and a superficial dilated tubular structure at the palpable site (Fig. B). On color Doppler examination, no flow was detected in the tubular structure. The diagnosis of Mondor’s disease of the breast was made on the basis of clinical findings and radiologic imaging findings. She was treated symptomatically with antiinflammatory and analgesic drugs. The symptoms resolved after a 6-week follow up. On follow-up sonography, the decrease in calibration of the thrombosed vein and recanalisation on color Doppler is seen (Fig. C).