Nervous and mental diseases . rare in the nineties, is now frequently recog-nized, and in neurological 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. Yerhagen andVandervelde report several instances of syringomyelia in the same family,but a neuropathic heredity is rare. Adult years furnish nearly all the 394 DISEASES OF THE CORD PROPER. reported cases, but it has been observed well developed at nineteen byLangdon, of Cincinnati, by the autho
Nervous and mental diseases . rare in the nineties, is now frequently recog-nized, and in neurological 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. Yerhagen andVandervelde report several instances of syringomyelia in the same family,but a neuropathic heredity is rare. Adult years furnish nearly all the 394 DISEASES OF THE CORD PROPER. reported cases, but it has been observed well developed at nineteen byLangdon, of Cincinnati, by the author at sixteen, and by Ballard andThomas at Cold, rheumatism, exposure to bad weather, trau-matism, overwork, the acute infectious fevers, and syphilis,2 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 showsnotable changes of conformation that correspond to its tubular condi-. Fig. 144.—Sections of a syringomyelic cord. 1, Lower lumbar region ; 2, upper lumbar region;3, midcervical region (Bruhl).
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Keywords: ., bookcentury1900, bookdecade1910, bookid, booksubjectnervoussystem
