Benign and Malignant Tumours - What Are The Different Types of Cancer You Can Get?

The word tumour means lump and may be used to describe any swelling, it does not mean that the growth is a cancer (a malignant tumour), most lumps or tumours are not cancers (benign tumours). So what is it that decides whether a lump is a benign tumour or is a cancer? This is not always an easy question to answer; malignant tumours have certain feature which makes them easier to recognise: