대한대장항문학회

Breast is the most common site of malignancy in woman but metastatic lesions in<br>breast are very rare. Metastatic lesions should be differentiated from benign diseases<br>and second primary cancers so as to expedite appropriate therapy. metastases in the<br>breast are usually solitary, well-defined mass in outer upper quadrant breast.<br>Mammographic and breast ultrasonographic findings are helpful in diagnosis. Biopsy<br>should be done for diagnosis. Prognosis is poor. We report a unusual case of breast<br>metastasis from rectal cancer in 31-years old female.<br>