Anoop | Mon September 12, 2011 
In ‘many’ chronic pain conditions, pain itself is the disease. The tissue that was triggering pain is healed and totally fine, but the pain just lingers.
Even in low back pain, imaging is only recommended for a minority of people whose low back pain that can be due to specific pathology like cancer, compression fracture, spinal infection, cauda equina syndrome. progressive neurological deficits and such.
| Mon September 26, 2011 
I really like the illustrations too. It is interesting how the source of the pain can be remedied but the brain continues to feel the pain. Our brain and nervous system are such complex and sometimes mysterious organs.