When my daughter was 10 years old (she is now 41) she had an I.V.Pyelogram which showed that she had an extra calyx on one of her kidneys.  The test was done because she was showing protein (I believe or possibly albumen - dont remember) on her blood test.  Now that she is much older she is having back pain.  She had a MRI which showed mild degeneration but nothing serious.  Her Dr. suggested P.T. which she just recently completed after many weeks of therapy.  Her back pain has not gotten better and her Orthopedic Dr. suggested she see an internist.  Could this extra calyx somehow be causing some kidney problem and back pain?
Welcome to ChatDoctorAfter going through your query I concluded that you there are having chronic backache. I Don't think extra calyx can because of chronic backache. Important cause of chronic backache is vitamin D3 deficiency, so you can get your vitamin D3 level and if low you can take its supplements. Vitamin B and C with be helpful in recovery. You can discuss with your Doctor about it. Hope your query get answered. If you have any further questions then don't hesitate to writing to us. I will be happy to help you. You can also write to me directly on below link:https://www.bit.ly/ask Chat Doctor. Take care.