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Twelfth-nerve palsies usually appear as signs rather than symptoms.Tumors, predominantly malignant,produce nearly half of the palsies(49 cases),while gunshot wounds made trauma(12)the second most common cause.Stroke(6), hysteria(6),multiple sclerosis(6),surgery(5),Guillain-Barre neuropathy(4), and infection(4)together accounted for about one third of the patients. Twelfth-nerve palsy proved to be an ominous sign,with only 15%of patients experiencing complete or nearly complete recovery. |
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