Nervous and mental diseases . cal clinics furnishes about the same percentageof patients as infantile cerebral palsy. Etiolog-y.—Men are much more frequently affected by this diseasethan women, and especially men exposed to hard labor. Verhageu andVandervelde report several instances of syringomyelia in the same family,but a neuropathic heredity is rare. Adult years furnish nearly all thereported cases, but it has been observed well developed at nineteen byLangdon, of Cincinnati, by the author at sixteen, and by Ballard and 1 Lovett and Martin, Jour. Amer. Med. Assoc, March 4, 1916, p. 729. 40
Nervous and mental diseases . cal clinics furnishes about the same percentageof patients as infantile cerebral palsy. Etiolog-y.—Men are much more frequently affected by this diseasethan women, and especially men exposed to hard labor. Verhageu andVandervelde report several instances of syringomyelia in the same family,but a neuropathic heredity is rare. Adult years furnish nearly all thereported cases, but it has been observed well developed at nineteen byLangdon, of Cincinnati, by the author at sixteen, and by Ballard and 1 Lovett and Martin, Jour. Amer. Med. Assoc, March 4, 1916, p. 729. 400 DISEASES OF THE CORD PROPER. Thomas at three. ^ Cold, rheumatism, exposure to bad weather, trau-matism, overwork, the acute infectious fevers, and syphilis, ^ have beenreported as possibly causative in various cases, but this relation, in thegliomatous form, at least, is entirely conjectural. Morbid Anatomy.—The syringomyelic cord in marked cases showsrotable changes of conformation that correspond to its tubular condi-. Fig. 144.—Sections of a syringomyelic cord. 1, Lovrer lumbar region ; 2, upper lumbar region3, midcervical region (Bruhl).
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Keywords: ., bookcentury1900, booksubjectmentalillness, booksubjectnervoussys
