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Breast. 2004 Dec;13(6):530-2.

Ureteral metastasis of occult breast cancer.

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  • 1University Hospital for Tumors, Zagreb, Croatia.


We report the case of a 59-year-old woman who presented with right flank pain and fever. Diagnostic investigations revealed stenosis of the right ureter extending over about 1cm. Since a double-J prosthesis could not be passed through it, a percutaneous nephrostomy was constructed and surgical exploration and excision of the stenotic ureteral segment were then carried out. Histopathological analysis of the segment removed showed diffuse infiltration with epithelial tumor cells. On immunohistochemistry, these cells were found to be positive for cytokeratin and for estrogen and progesterone receptors. No primary cancer and no additional metastases were detected. Eleven months later a primary tumor with a metastasis in the left supraclavicular region was found in the patient's right breast.

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