WHAT IS A LIPOMA?
A lipoma is a benign mass made up of fatty tissue. They are harmless and do not require any treatment: however many people wish to have them removed for cosmetic reasons.
A large lipoma on the top of the shoulders / behind the neck is referred to as a 'BUFFALO HUMP'.
Lipomas that are tender or painful to the touch are usually angiolipomas.
WHAT CAUSES LIPOMAS?
The exact cause of lipomas is unknown. There may be a genetic component involved, as many people with lipomas also have a family history of them (i.e, other members of the family will also have lipomas). Sometimes, a blunt blow or injury can trigger growth of a lipoma.
Occasionally, lipomas can be caused by disorder known as Madelung disease (also referred to as cephalothoracic lipodystrophy, multiple symmetrical lipomatosis, and Launois-Bensaude syndrome), which causes painless symmetrical lipomas across the neck, upper trunk, arms, and legs.