The links between the rheumatology and the neurology, are ancient and established of one intricacy of pathologies and symptoms. It is not a question here of approaching the inflammatory myositis nor the neurological, essentially central signs, during the inflammatory diseases still called systematic as the lupus or the syndrome of Gougerot-Sjögren, neither compression occurring during rheumatoid arthritis and ankylosing spondylarthritis. It is not either a question of reviewing the compression of osseous origin, as for example the narrow cervical spine, the narrow lumbar spine or the basilaire impression during the bony disease of Paget. Some neurological pathologies can put off the track or mislead the clinician towards symptoms which could impose it for radiculopathy origin occurring in rheumatic conditions In the second place, there are untidy or underestimated neuropathies which deserve a particular attention.