Micrometastasis

Distant metastases are the main cause of cancer-related death. The onset of the metastatic process can now be assessed in cancer patients by the use of immunocytochemical and molecular methods that allow the identification of disseminated carcinoma cells in regional lymph nodes, peripheral blood or distant organs. There is increasing evidence that the detection and characterization of tumor cells present in bone marrow or peripheral blood can provide clinically important information. In this boo