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November 23, 1889


JAMA. 1889;XIII(21):743-744. doi:10.1001/jama.1889.02401170021003

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Fibrinous Membranes Within the Spinal Canal.  Dr. Joseph Wigglesworth reports three cases of general paralysis in which he found, post mortem, fibrinous membranes in connection with the spinal cord. In the first case the membrane was from one to two lines in thickness and was found lying upon the external surface of the dura mater on its posterior aspect. It extended from the third to the seventh dorsal vertebra and was attached both to the dura mater and to the walls of the spinal canal.In the second case the membrane was similar to the foregoing one. In the third case it extended from the lower cervical to the lower dorsal region and involved the roots of some of the spinal nerves. It was everywhere coherent and could be detached as a separate membrane. The three membranes were all external to the dura mater, in which respect they differ

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