 Additionally, imaging may show secondary signs of nerve damage that further confirm the diagnosis of impingement.Signs of nerve damage include flattening of the nerve, swelling of the nerve proximal to site of injury, abnormal appearance of nerve, or characteristic changes to the muscles innervated by the nerve.Symptoms of ulnar neuropathy or neuritis do not necessarily indicate an actual physical impingement of the nerve; indeed, any injury to the ulnar nerve may result in identical symptoms.