Ok so i am not sure about crohns but can you maybe help me out or point me in the right directions. I have a 10 year old who we can not figure out what is wrong with her so we have done many many test to see including a colonoscopy last week, but see about 2 weeks ago they did a bunch of blood tests and i was told my daughter did not have celiac or crohns, they also did a bunch of other tests but then last week during the colonoscopy they said they found a small spot on her large intestine that looked maybe like crohns, can you tell me why it would be negative on a blood test but something like that then be detected on a scope? Sorry to bother you but just looking for answers.