Sometimes blood cells become malignant, and build up in the bloodstream or lymph nodes. (animalkindvet.com)
«It's similar to what we see with pre-cancerous cells which accumulate genetic changes but only become malignant when they acquire critical driver mutations that kick - off growth.» (cggh.org)
The final list of 24 questions ranges from how obesity contributes to cancer risk, to why certain mutations promote cancer in some tissues but not others and why some tumors lie dormant for years before becoming malignant. (sciencemag.org)