Wernicke’s encephalopathy [Karl Wernicke], an inflammatory, hemorrhagic, degenerative condition of the brain. It is characterized by lesions in several parts of the brain, including the hypothalamus, mammillary bodies, and tissues surrounding the ventricles and aqueducts, double vision, ophthalmoplegia, involuntary and rapid movements of the eyes, lack of muscular coordination, and decreased mental function, which may be […]
Wernicke’s center [Karl Wernicke; Gk, kentron, center], a sensory speech center located in the posterior temporal gyrus and adjacent angular gyrus in the dominant hemisphere. Wernicke observed in 1874 that patients with brain damage in that area also suffered a loss of speech comprehension. Also called Wernicke’s field, Wernicke’s zone. See also speech centers.
Wernicke’s aphasia /ver″nikēz/ [Karl Wernicke, German neurologist, 1848–1905], a form of aphasia affecting comprehension of written and spoken words, possibly caused by a lesion in Wernicke’s center. The patient may articulate normally, but speech is incoherent, with malformed or substitute words and grammatical errors. Compare Broca’s aphasia.
Wernicke-Korsakoff syndrome, the coexistence of Wernicke’s encephalopathy and Korsakoff’s syndrome.
Werner’s syndrome /wur″nərz, wer″nərz/ , an inherited condition of progeria with scleroderma, juvenile cataracts, diabetes mellitus, and hypogonadism.
Werlhof’s disease, now called immune thrombocytopenic purpura.
Werdnig-Hoffmann disease /verd″nig hôf″mun/ [Guido Werdnig, Austrian neurologist, 1844–1919; Johann Hoffmann, German neurologist, 1857–1919], a genetic disorder beginning in infancy or young childhood, characterized by progressive atrophy of the skeletal muscle resulting from degeneration of the cells in the anterior horn of the spinal cord and the motor nuclei in the brainstem. Onset occurs within the […]
Wenckebach heart block. See Mobitz I heart block.
wen. See pilar cyst.
welt [OE, wealtan, to roll], a raised ridge on the skin, usually caused by a blow or occurring in dermatographism.