Hannah and Tarkarri are right. The cancer almost always dies
except for the case of Henrietta Lacks whose cancer cells live on
in laboratories that study cancer cells. Here's her story.
Note that neither she nor her family signed a consent for
laboratories to keep her cancer cells. From Wiki "
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A HeLa cell is a cell type in an immortal cell line used in scientific research.
It is the oldest and most commonly used human cell line.
The line was derived from cervical cancer cells taken on February 8, 1951
from Henrietta Lacks, a patient who eventually died of her cancer
on October 4, 1951. The cell line was found to be remarkably durable
and prolific as illustrated by its contamination of many other cell lines
used in research." http://en.wikipedia.org/wiki/HeLa