I In cancers that are easiest to diagnose are obviously the ones on tin outside. Thus, if there is a sore that won’t heal on the skin, in tin mouth or anywhere else where it can easily be seen, it’s just a Blatter of the doctor looking at it. If it looks at all suspicious of Bancer a specimen is taken. This may sometimes be done by ó scraping some cells from the surface. However, such a iien may only contain a mixture of blood cells, germs and dead cells which cannot be identified. This means that it is often necessary to get a specimen from deeper down. This can be done with a needle or by actually removing a small piece of the lesion under a local anaesthetic.
Some cancers start very close to the surface and can be seen and felt as a lump under the skin by the patient and the doctor. Common ones are cancers of the breast, lymph nodes (primary or secondary), and testicle. A lump under the skin can be the first indication, of other cancers also, such as ones starting in fatty tissues, muscle, bone etc. Of course, there are many other possible causes besides cancer for lumps under the skin.
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