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Tabes dorsalis
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<p>Tabes dorsalis is a late consequence of <a href="/facts/Neurosyphilis/RyqWG559">neurosyphilis</a>, characterized by the slow degeneration (specifically, <a href="/facts/Demyelination/NAaGAHPV">demyelination</a>) of the neural tracts primarily in the <a href="/facts/Dorsal_root_ganglion/7BGJkVxV">dorsal root ganglia</a> of the <a href="/facts/Spinal_cord/XbWLr917">spinal cord</a> (nerve root). These patients have lancinating nerve root pain which is aggravated by coughing, and features of sensory ataxia with ocular involvement. </p>