Hi. My 11yr old son recently was messing about and doing backward flips, and when he stood up a lump had come up on his back, directly in line with his spine . It goes down over weeks, and then tonight he was playing on the carpet, on his back, stood up and once again this lump has flared up? Should we be concerned. The doc said to see how it goes, but now we are worried ?
There are many things to clear clinically.1.minimal scar or lump since birth yes/no2. Is it associated with pain.3. Is it hard to touch or soft and compressible.4. Is it tender to touch.5.pain radiating to legs.  It could be occult meningiocele, dermoid, spondylolisthesis or simply inflammation in spinal muscle.