Giant cell arteritis complicated by spinal cord infarction: a therapeutic dilemma.

Spinal cord involvement is uncommon in giant cell arteritis (GCA) and spinal cord infarction is extremely rare. We describe an 80-year-old man with active GCA who developed sudden paraplegia and dissociated sensory loss while receiving steroid treatment. Magnetic resonance imaging showed high signal abnormality consistent with spinal cord infarction in the anterior spinal artery territory at the level of D10. The case illustrates the elusive nature of GCA and the diagnostic and therapeutic dilemmas faced by the physician caring for these patients.