Rupture of a cervical intervertebral disk into the spinal canal has been reported many times. With few exceptions, however, the symptoms were due to compression of the spinal cord rather than the nerve roots. Adson,1Elsberg,2Stookey,3Peet and Echols,4Mixter and Ayer,5Hawk,6Love and his co-workers7and Bradford and Spurling8all have reported 1 or more cases of rupture of the cervical disks. Of all these cases only 4 seem to have had nerve root compression without involvement of the spinal cord, and of these 19was a rupture of the sixth disk. In this particular case the description of the exact radiation of the pain and of the sensory findings was quite limited. Two of the cases10were not proved pathologically, but there seems to be very little doubt of the diagnosis. From a review of the