Mononeuropathy

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Mononeuropathy Classification and external resources
ICD-10	G56.0-G59.
ICD-9	250.6, 354.0-355.9
MedlinePlus	000780
MeSH	D020422

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Phone:617-632-7753

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Mononeuropathy (or "mononeuritis") is a type of neuropathy that only affects a single peripheral or cranial nerve. It is diagnostically useful to distinguish them from peripheral neuropathy and autonomic neuropathy because the limitation in scope makes it more likely that the cause is a localized trauma or infection.

The "pins-and-needles" sensation of one's "foot falling asleep" (paresthesia) can be caused by a type of mononeuropathy, albeit a temporary one which can be resolved merely by moving around and adjusting to a more appropriate position.

Examples of mononeuropathies

• Limbs
  • Thoracic outlet syndrome - Brachial plexus (varies)
  • Carpal tunnel syndrome - Median nerve
  • Radial neuropathy - Radial nerve
  • Winged scapula - Long thoracic nerve (usually)
  • Meralgia paraesthetica - Lateral cutaneous nerve of thigh
  • Tarsal tunnel syndrome - Tibial nerve

• Facial (note: although these are conditions which affect only a single nerve, they are less frequently called "mononeuropathies" than the conditions above)
  • Oculomotor nerve palsy - Oculomotor nerve (III)
  • Fourth nerve palsy - Trochlear nerve (IV)
  • Sixth nerve palsy - Abducens nerve (VI)
  • Bell's palsy - Facial nerve (VII)

See also

• Polyneuropathy

External links

• PatientPlus
• -804913142 at GPnotebook
• Merck

v • d • e Nervous system pathology, primarily PNS (G50-G99, 350-359)
Nerve, nerve root and plexus disorders (neuropathy, radiculopathy, plexopathy)	cranial nerve: V (Trigeminal neuralgia) - VII (Facial nerve paralysis, Bell's palsy, Melkersson-Rosenthal syndrome, Central seven) - XI (Accessory nerve disorder) nerve root and plexus: Brachial plexus lesion - Thoracic outlet syndrome - Phantom limb mononeuropathy: upper limb (Carpal tunnel syndrome, Ulnar nerve entrapment, Radial neuropathy) - Causalgia - lower limb (Meralgia paraesthetica, Tarsal tunnel syndrome, Morton's neuroma) - Mononeuritis multiplex
Polyneuropathies and other disorders of the PNS	hereditary and idiopathic (Charcot-Marie-Tooth disease, Dejerine Sottas syndrome, Refsum's disease, Morvan's syndrome) Guillain-Barré syndrome - Alcoholic polyneuropathy
Diseases of myoneural junction	autoimmune: Myasthenia gravis - Lambert-Eaton myasthenic syndrome
Diseases of muscle (myopathy)	Muscular dystrophy myotonic (Myotonic dystrophy, Myotonia congenita, Thomsen disease, Neuromyotonia, Paramyotonia congenita) congenital myopathy (Centronuclear myopathy, Nemaline myopathy, Central core disease) Mitochondrial myopathy periodic paralysis: Hypokalemic - Hyperkalemic
Autonomic	Familial dysautonomia - Horner's syndrome - Multiple system atrophy (Shy-Drager syndrome, Olivopontocerebellar atrophy)