Marcia J. Sparling

Learn More
Cauda equina syndrome is an uncommon complication of ankylosing spondylitis (AS), but results in significant morbidity in those patients affected. We report 2 patients who developed classical cauda equina syndrome, which was well visualized by magnetic resonance imaging. This technique allows accurate noninvasive diagnosis of this complication of AS.
A survey of 37 inbred strains for erythrocyte purine nucleoside phosphorylase activity showed a greater than threefold range. Six of these strains had significantly greater activity than the others, and all of the high-activity strains had the Np-2 electrophoretic band. The high-purine nucleoside phosphorylase activity trait corresponding to Np-2 was(More)
  • 1