Patrick Couzens asked:
Why don't people get muscle cancer? It seems to be the only tissue that is immune.
Patrick W Couzens
Independence Missouri USA
It’s not true. There are some quite common myths about certain types of tissue in the body that don't get cancer. People say, “Oh, you don't get cancer of the heart.” You can, it’s just incredibly rare. Any of the tissues of our body can pretty much become cancerous because that's just what happens when cells grow out of control.
There are well-known cancers of the muscles. There are benign muscle tumours of the smooth muscle. That's the kind of stuff around our intestines and the female uterus. They're called leiomyomas. You also get benign tumours of skeletal muscle, those are rhabdomyomas and you can also get malignant aggressive muscle tumours. So you get leiomyosarcomas and that's the smooth muscle cancers. And rhabdomyosarcomas which particularly affect children, and those are all cancers of the muscle.
So although these are very rare, they still do happen.
I dont know for sure that they don't generate tumors, but I don't think muscle cells divide and replace themselves like epithelial cells do, and when muscle cells are damaged, they are replaced by scar tissue. Muscle cells do get bigger, but its by increasing the number of actin and myosin filaments inside them. cheryl j, Wed, 23rd Nov 2011
People do develop muscle cancers; they're referred to as sarcomas. In the case of skeletal muscle they are known as rhabdomyosarcomas. They can also arise from cardiac muscle, producing an atrial myxoma, and smooth muscle, which gives rise to a leiomyosarcoma.
There are muscle cancers.
I wonder if a muscle training is able to decrease the possibility of a muscle cancer. Stephany, Sat, 26th Nov 2011
I doubt it, Stephany, in much the same way that lung training (known as breathing) actually increases the risk of lung cancer!
Just an extra:
But muscle cells arent connective tissue, they are a separate tissue called muscle tissue. Muscles themselves have connective tissue sheaths and are connected to tendons and ligaments, which are also connective tissue. So are the sarcomas in the connective tissue around or near by muscle cells? cheryl j, Wed, 30th Nov 2011
I'm sorry about the confusion, with connective tissue, I actually mean all tissue types that are derived from the mesoderm germ cell layer..
Despite the fact that the lens epithelium divides throughout life, there has never been a reported case of lens cancer. The reason remains a mystery and oddly receives almost no attention from the cancer research community. Look it up: you won't find much. The following reference is freely available: Indian J Ophthalmol. 2003 Dec;51(4):297-301 Rob, Tue, 16th Oct 2012
How does it happen though? thats what I'd like to know Just a random commenter, Mon, 19th Jan 2015