Lipoma is a slow-growing, benign (noncancerous) tumor composed of fat cells. It is very common and can occur anywhere on the body, but it is most often found on the neck, shoulders, back, abdomen, arms, and thighs. Lipomas can vary in size—from a few millimeters to several centimeters in diameter.
Symptoms of Lipoma
The most common symptom of lipoma is a small, soft lump under the skin. It is typically painless and moves freely when touched. In some cases, lipomas may cause pain or discomfort if they press on a nerve or become very large.
Causes of Lipoma
The exact cause of lipoma is unknown. However, it is believed to be related to an abnormal overgrowth of fat cells. In some cases, lipomas may be linked to genetic factors or underlying medical conditions, such as Gardner’s Syndrome and Madelung’s Disease.
Diagnosis of Lipoma
Lipomas are typically diagnosed during a physical exam. Your doctor may order additional tests, such as an ultrasound or MRI, to confirm the diagnosis.
Treatment of Lipoma
Most lipomas are small and harmless, so treatment is usually not necessary. If the lipoma is large, painful, or cosmetically undesirable, your doctor may recommend surgical removal.