Post 2006 season, my 15-year-old son, a rep-level pitcher, started complaining about shoulder pain and popping. He and I went to the U.of Toronto Sports Medicine Clinic where he was diagnosed with Shoulder Impingement Syndrome after undergoing MRI examination as well. The doctor there seemed concerned to the extent that he implied that his pitching career may be in jeopardy. Part of the reason for the extra concern is that that there is evidence of bone loss and also a couple of cysts, very unusual in one so young. The doctor believes the problem stems from something being done incorrectly in his mechanics (arm moving back without shoulder accompaniment (but he doesn’t “short arm”!)?) and that if this isn’t found and corrected, the outlook is grim. It’s a bit frustrating since my son appears to have very good mechanics. My son (and yes, me too) is semi devastated at the prospect of not pitching. He will of course follow the suggested physio-therapy and we are seeing an ortho surgeon for a second opinion. I’d be very grateful for any opinions on treatment or prognosis from those with experience or knowledge (especially encouraging ones! :>))…thanks all!