
Mononeuritis of upper limb and mononeuritis multiplex

Carpal tunnel syndrome
- entrapment of the median nerve in the carpal tunnel, which is formed by the flexor retinaculum and the carpal bones; this syndrome may be associated with repetitive occupational trauma, wrist injuries, amyloid neuropathies, rheumatoid arthritis, acromegaly, pregnancy, and other conditions; symptoms include burning pain and paresthesias involving the ventral surface of the hand and fingers which may radiate proximally; impairment of sensation in the distribution of the median nerve and thenar muscle atrophy may occur.

Other lesion of median nerve

Lesion of ulnar nerve

Lesion of radial nerve

Causalgia of upper limb

Mononeuritis multiplex
- WHAT: Mononeuritis multiplex. Mononeuritis Multiplex: the simultaneous inflammation or degeneration of two or more peripheral nerves which are remote from one another. WHY: Mononeuritis multiplex can occur in polyarteritis if the nutrient arteries of peripheral nerve trunks are involved by the disease. HOW: The patient with mononeuritis multiplex may present with motor or sensory changes which occur in an irregular and asymmetrical distribution on his body. These changes may be areas of paresthesia or anesthesia, loss of deep tendon reflexes, weakness or paralysis of muscle group. For example, a typical patient might present with paresthesia of the radial aspect of his left hand representing involvement of the left median nerve and weakness of his right foot and ankle representing right tibial nerve involvement. REFS: 1) Lovshin, LL and Kernohan, JW: Peripheral neuritis in periarteritis nodosa: a clinicopathologic study. Proc Staff Meeting Mayo Clinic 24:48, 1949. DN19294-5. 2) Frohnert, PP and Sheps, SG: Long-term follow-up study of periarteritis nodosa. Am J Med 43:8, 1967. DN19295-3.
- A painful asymmetric asynchronous sensory and motor peripheral neuropathy involving isolated damage to at least 2 separate nerve areas; associated with (but not limited to) systemic disorders such as diabetes, vasculitis, amyloidosis, direct tumor involvement, polyarteritis nodosa, rheumatoid arthritis, systemic lupus erythematosus, and paraneoplastic syndromes. It also may be associated with Lyme disease, Wegener's granulomatosis, Sjogren syndrome, cryoglobulinemia, hypereosinophilia, temporal arteritis, scleroderma, sarcoidosis, leprosy, acute viral hepatitis A, and acquired immunodeficiency syndrome.

Other mononeuritis of upper limb

Mononeuritis of upper limb unspecified