SCLEROSIS

(Lat.), n. f. Sklear(sklar)-os'i3s. Gen., -os'eos (-is). Gr., o-KArjpiixns (from (r*ATjpds. hard). Fr., sclerose. Ger., Sclerose. A hardening proce or a hardened condition. [D.] Of. INDURATION. Amyotrophic lateral s. Progre ive muscular atrophy, usually ending with bulbar paralysis, due to s. of the lateral columns of the spinal cord, [a, 34. | Annular s. Of Vulpian, a chronic peripheral myelitis. [A, 319 (a, 34).] Arterio-capillary s. General s. of the arteries and capillaries. [D, 68.] Of. ARTERIOSCLEROSIS. Atropliic s. S. with atrophy, [a, 34.] Combined s. S. of both the posterior and lateral columns of the spinal cord. ["N. Y. Med. Jour.,'1 Jan. 28, 1838, p. 106(a. 34).] Compound lateral s. A s. of the spinal cord in which more than one series of spinal elements are involved. [D, 35.] Cortical s. Of Vulpian, myelo-meningitis. ["Arch, de Phys.," ii, 1869, p. 279 (a, 34).] Diffused cerebral s. A morbid condition of some portion of the brain, presenting diffused hypertrophy and hardne of the neuroglia. [D, 34.] Cf. Multiple cerebral s. Di eminated s. See Multiple s. Focal s. S. affecting some particular region of the brain or spinal cord, [a, 34.] General s. Interstitial fibrous hyperplasia affecting the whole of an organ, [a, 34.] Initial s. See Syphilitic CHANCRE. Insular s. See Multiple s. and Multiple spinal s. Lateral s. S. of a lateral column of the spinal cord. [a. 34.] Lateral symmetrical s. S. of the lateral columns of the spine. [L, 49 (a, 14).] Lobar s. S. affecting an entire cerebral lobe. [A, 319 (a, 34).] Multiple cerebral s. A disease of the brain in which the lesion consists of plates or nodules of sclerosed ti ue scattered through more or le of its substance. Important phenomena in connection with it are shooting pains and a tendency to tremor in certain parts, notably in the extremities, [a. 34.] Multiple cerebro-spinal s. Chronic di eminated inflammation which attacks both the brain and the spinal cord in points or plates, [a, 34.] Multiple s. Chronic induration di eminated in patches in various parts of the nervous system. The most constant of the phenomena are muscular weakne and tremor when voluntary effort is made, [a, 35.] Multiple spinal s. A lesion which afTects various parts of the spinal cord at the same time or consecutively. It is found in both the white and the gray matter, in distinct foci, [a, 34.] Neural s. S. a ociated with chronic inflammation of a nerve trunk or its branches. [D, 34.] Posterior O, no; Oa. not; O3. whole: Th. thin; Th3, the; U, like oo in [s. 461]