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In the course of tabes dorsalis there are apt to be attacks of sudden severe spasmodic pain, localized in different organs of the body, namely : enteralgic c, spasmodic pain in the lower part of the abdomen, of a peculiarly sudden and violent nature; gastric c, a paroxysm of very severe gastric pain, occurring especially as one of the symptoms of the pre-ataxic stage of tabes dorsalis; laryngeal c, a sudden paroxysm of laryngeal spasm, or of other laryngeal symptoms in the pre-ataxic stage of tabes dorsalis; pharyngeal c., spasms of swallowing; rectal c, a paroxysm of rectal pain; urethral c, a paroxysm of pain along the course of the urethra or in the meatus urinarius; visceral c, violent spasmodic pain, referable to the region of some viscus. [Gr.]