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Related to palsies: papilledema, hydrocephalus


paralysis or palsy (pôlˈzē), complete loss or impairment of the ability to use voluntary muscles, usually as the result of a disorder of the nervous system. The nervous tissue that is injured may be in the brain, the spinal cord, or in the muscles themselves. Accordingly there may be general paralysis, involvement of only one side (hemiplegia), paralysis on both sides at one level (paraplegia or quadriplegia), or localized paralysis in a small group of nerves or muscles.

The cause of paralysis may be any injury that tears or compresses the nerves; it may be hemorrhage, tumor, infection, or substances toxic to nerve tissue. One of the most frequent causes of paralysis is stroke, in which hemorrhage, thrombosis, or obstruction of a cerebral vessel interferes with nerve function. Another disorder in which a resting tremor is one of the main symptoms, accompanied by slowness and poverty of movement, muscular rigidity, and postural instability is Parkinson's disease. Cerebral palsy is due to an injury to the brain motor tissue before or during birth. However, this disorder is nonprogressive. Partial or complete paralysis often accompanies multiple sclerosis.

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Any of various special types of paralysis, such as cerebral palsy.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


paralysis, esp of a specified type
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Smith, "Chronic isolated sixth nerve palsies," JAMA Neurology, vol.
There is substantial evidence for the conservative treatment of radial nerve palsies that occur at the time of humeral shaft fractures due to the high rate of spontaneous recovery [2, 10].
(12) Patients may present with hearing loss, otalgia, occipital headaches, cranial nerve palsies, vertigo, gait ataxia, tinnitus, and otorrhea.
(1) A weakness of the facial nerve that progresses slowly is most likely the result of a neoplasm; such palsies account for less than 5% of all facial palsies.
In the book titled: Cerebral Palsies: Epidemiology and Causal Pathways, by Fiona Stanley et al, (10) the authors opined that the placental abruption with its dramatic effects on placental blood flow is more likely associated with cerebral palsy than placenta praevia.
The maxim, "All that palsies is not Bell's," is particularly relevant with respect to patients who have previously been treated for advanced nasopharyngeal carcinoma.
The most common ophthalmoplegias are caused by oculomotor (III) and trochlear (IV) nerve palsies; abducens (VI) palsies are the least common.