[Female patient with unclear liver lesions after breast cancer. Imaging modalities as a key to diagnosis].

The case of a 58-year-old female patient with well-differentiated breast cancer (T1 stadium) without axillar lymphadenopathy and with multiple suspect liver lesions is described. Liver metastases of the breast cancer could be excluded histologically, however, serologic testing for echinococcosis was negative. After contrast-enhanced sonography and because of the complex B-mode appearance of the liver lesions, cystic echinococcosis was suspected. This could be verified histologically after hemihepatectomy.