The lump behind Cillian Murphy's right ear is most likely a lipoma, which is a benign tumor composed of fat cells. Lipomas are typically soft, movable, and painless. They do not require treatment in most cases, but they can be removed surgically if they are causing pain or discomfort.
If you have a lump behind your ear, it is important to see a doctor to rule out any underlying medical conditions. Lipomas are the most common type of soft tissue tumor, but there are other, more serious conditions that can also cause lumps behind the ear. Your doctor will be able to diagnose your condition and recommend the best course of treatment.
