USE AND ABUSE OF COCAIN

1898 Journal of the American Medical Association (JAMA)  
in the comma-zones for a short distance downward. It is pointed out that while no cavity had formed in the cord, the seat of the lesion, particularly in its distribution about the central canal and the central gray matter, corresponded with that observed in many cases of syringomyelia. The segmental loss of tactile sensibility confined to the right leg is considered possibly hysteric, from the absence at and above the seat of lesion of any serious involvement (such slight implication as existed
more » ... being symmetric) of the postero-internal columns, through which the sensory fibers from the lower limbs pass. Prince, in the article on syringomyelia, in Dekoum's "Text-book on Nervous Diseases" (p. 590), cites Bruhl and Charcot as authority for the statement that "the loss of sensation in the arms occurs in zones, extending in a circular manner around the limbs, as in hysteria, and does not follow the anatomic distribution of the nerves in neu¬ ritis. This zone-configuration is thought to corre¬ spond with the arrangement of the spinal centers." The thermanesthesia and the analgesia in this case are considered as pointing unerringly to the conclu¬ sion of van G-EHUCHTEN, that in all probability painsense and thermic sense are transmitted through the gray matter by way of cells whose axis-cylinders become the fibers that constitute especially the anterolateral ascending tract; and these fibers are, according to the same authority, crossed. The fibers for tactile sensibility are believed, on the contrary, to pass up the posterior columns on the same side. USE AND ABUSE OF COCAIN.
doi:10.1001/jama.1898.02450260040006 fatcat:he5ct2l22fe5jhzwolp3vjrfuu