Mulilevel cervical spondylosis . There is a moderate central disc extrusion at c4/c5 with mild superior and inferior extensions of the extruded disc material. There is a right paracentral disc protrusion at c5/c6 as well as a mild central disc protrusion at c3/c4. There is deformity of the ventral aspect of the spinal cord atc3/c4, c4/c5, and c5/c6 with mild central canal stenosis at c4/c5 and c5/c6. There is a questionable empty or partially empty sella. What does this all mean, thank you