english: And once those vessels invade the cancer, it can expand, it can invade local tissues, and the same vessels that are feeding tumors allow cancer cells to exit into the circulation as metastases.
non_english: I kada ti sudovi prodru u rak, on se širi i može da prodre u okolna tkiva. I isti krvni sudovi koji hrane tumore omogućavaju ćelijama raka da uđu u cirkulaciju kao metastaze.