ENO2 and Creutzfeldt Jacob disease: Cerebrospinal fluid (CSF) at six months showed normal cells, protein, glucose, high intermediate neuron-specific enolase of 30 ng/ml (15–30 ng/ml intermediate, > 30 consistent with CJD, Mayo Laboratories, Rochester, MN) and 14-3-3 negative (<1.0 ng/mL, Mayo).