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.
Kui veresooned on vähkkasvajasse tunginud, võib see paisuda, levida kohalikesse kudedesse. Ja samad veresooned, mis toidavad kasvajaid, lasevad vähirakkudel väljuda metastaasidena vereringesse.