Entrapment neuropathies, often as a result of exposure to mechanical compression of the peripheral nerve paths along the anatomic course, more rarely occurs dynamically during movement without direct nerve compression. Magnetic resonance (MR) imaging for the diagnosis is commonly used. With MR imaging (conventional MR and MR neurography), changes in the morphology of the nerve according to compression can be shown in detail. With this method, we can identify the factors that cause the entrapment, and at the same time we can have more satisfactory information about the bone and soft tissues nearby.