Lipomas are diagnosed usually by its characteristic shape, location and feel and history of a slow growing, painless lump that is under the skin. There is usually no need for further investigations if it fits the criteria for a lipoma and the doctor will normally recommend removal if you want it. Sometimes, if the doctor is unsure of the diagnosis or if it is an area with other important structures (such as blood vessels or nerves), then further imaging such as ultrasound of the lesion , X-rays or CT scans may be ordered. However this is used only rarely.
I deally I would like to be put under a general and have the surgeon open me up properly to have a really good rummage and clean ou of this area to cut the chances of it recurring again. I'm not a vain person in the slightest but this lump is already causing me the same discomfort, a sort of tightness and causes me to favour my right neck muscles. I don't want to develop a crooked neck or a stoop ior something from this, I would be fine with a scar if only I could eascape from this nagging feeling that everyone can see my lump and that I can't wear revealing tops without jewellery or a scarf.