How common are cysts and/or "Fatty deposits" or lymphomas? what causes them and can get rid of them?
The word is "lipoma" for a fatty cyst. (Lymphoma is a type of cancer.) Cysts are fairly common and lipomas aren't rare, either. You get rid of them by seeing a dermatologist and having them removed. They numb the skin, remove the cyst or lipoma and then stitch it up. It can be done in the doctor's office. You can watch it being done on Youtube -- "Dr. Pimple Popper."
It's an acne cyst. Anything else wouldn't be palpable or at skin level.