Cancer is the common name given to all the various forms of malignant neoplasia. (link to What is neoplasia?)  A tumour is a...

Benign tumours grow locally and do not tend to spread to other parts of the body.   If they are surgically removed, they usually do not grow...

When we talk about lumps, growths or tumours we are usually talking about neoplasia.  A neoplasm is a bunch of cells that...