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[A] Spinal cord, thoracic level. Degeneration of the direct and crossed pyramidal tracts. Weigert; [B] Anterior column of the spinal cord. Numerous neurons presenting chromatolysis. Cresyl-violet. c.n.: normal cell; c.at.: atrophied cell; c.gl: globoid cell; [C] Ascending frontal gyrus. Chromatolysis of Betz cells. Cresyl-violet.
