Neuritis can be clearly diagnosed by history, physical examination combined with electromyography and magnetic resonance. It is recommended that the patient choose the appropriate examination program under the guidance of the doctor to clarify or exclude the diagnosis as soon as possible.
1. Medical history: Neuritis may be preceded by acute or chronic infections, or a history of isoniazid, vincristine, or metabolic diseases and poisoning.
2. Physical examination: Neuritis may present with pain, sensory and motor deficits in the lesion area. Physical examination may reveal decreased or absent tendon reflexes, abnormal muscle tone and limb muscle strength.
3. Electromyography: When neuritis patients have axonal degeneration and secondary loss of myelin sheath, the electromyography may show denervation changes. The electromyogram shows neurogenic damage, and the electrical test shows a degenerative response.
4. Magnetic resonance: Abnormal signals of neuroinflammatory changes, mainly in the form of high signals in T2WI, with fat and water suppression, the signals are more obvious after the operation. Magnetic resonance can show the location of the lesion, the size (length), the site (full cross section, mid-axis, or periphery), and whether there is any thickening or thinning of the nerves.
If the patient exists local sensory, motor dysfunction and other signs of neuritis need to be consulted as early as possible, diagnosed as early as possible, treated as early as possible, to prevent delayed condition.