A fatty tumor, also known as a lipoma, is a noncancerous tumor made up of fat cells that grows just under the skin. Lipomas can take up to several years to grow noticeable, according to DermNet. They can reach up to 10 c... More » Health Conditions & Diseases

As of 2015, doctors do not know the cause of fatty tumors, or lipomas, in humans, according to Healthline. Fatty tumors tend to run in families, so there is likely a genetic component. More » Health Conditions & Diseases Cancer

Tumors typically have names based on which tissues surround them, notes the National Cancer Institute. For example, fibromas are benign tumors in fibrous tissue, hemangioma refers to a benign tumor of the blood vessels, ... More » Health Conditions & Diseases Cancer
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The primary sign of a fatty cyst, also known as a lipoma, is a soft, rubbery and small movable bump that can be felt under the skin, explains WebMD. Fatty cysts do not cause pain and typically do not enlarge, but the cys... More » Health Conditions & Diseases

A fatty tumor on the kidney, called angiomyolipoma, is a benign mass composed of fat, blood vessels and smooth muscle. A benign tumor is noncancerous and cannot metastasize or spread to other parts of the body but it can... More » Health Conditions & Diseases

A lipoma is an overgrowth of fat cells that form a noncancerous lump under the skin, as reported by Cancer Research UK. The cause of lipoma is not clear, but the tendency to develop them is hereditary. More » Health Conditions & Diseases Cancer

Lipoma surgery is a procedure designed to remove a lipoma growth from the skin. According to WebMD, lipoma growths are not cancerous and do not require surgery, but they may be removed for cosmetic reasons or if they bec... More » Health Conditions & Diseases