The CT of C6-T1 seems a bit low. I would lookhigher. What level are you doing the unilateral ?PA's or are the AP's. What distribution if any was the paresthesia? How are his manual muscle tests and spinothalamic indicators e.g touch, two point discrimation etc etc. Were the cwervical xrays only front and lateral or was there an oblique one as well? and a jaw open view of C2. This sounds like a great case to discuss online. Can you try to give us more info. regards richard