A lipoma is a soft cancerous lump made of fatty tissue that grows just beneath the skin. It is usually painless, slow-growing, and often harmless. Lipomas are quite common, typically appearing on arms ...

Q: I developed a lump under the skin of my neck that my doctor said was a kind of tumor, a lipoma. She said it was benign and we can just watch it and do nothing. Does that sound right? A: Lipomas are ...