What could cause elevated sed rate and positive ana 1:640 speck pattern? lupus panel neg. have had ct and mri. back pain right flank soreness

Uncertain : This may not be related to lupus this will depend on the evaluation of your physician but the + ANA can be there for many reasons. The elevated sedimentation rate can also suggest many other medical problems or even be normal. It appears you're having a very extensive evaluation. You might ask your physicians if this flank pain is referred pain.