Re: Heart cancer

Andy & Kim wrote:
> Hi, is there such thing as cancer of the heart, if so what is it called. If
> not why does cancer not affect the heart tissue.
>
> Andy

There's no heart cancer because heart cells don't divide (AKA
reproduce). When heart cells die (for example, after a heart attack),
they are replaced with scar tissue rather than new heart muscle cells.
Cancer affects tissues with cells that that divide, and spreads very
easily from tissues that have a lot of blood vessels (like the lungs or
liver) which can allow cancer cells to travel from one part of the body
to another. This is why lung and liver cancers are so deadly --
rapidly dividing cells, highly vascular tissue (lots of blood vessels).


Your heart can become enlarged because of high blood pressure, but
that's because your heart muscle cells get bigger (hypertrophy), not
because you've grown too many heart cells (hyperplasia).

Why do you ask?

--Patti

.

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