Hi! My 14 year old son is a childhood cancer survivor (Wilms Tumor at 2 years old). Despite a complete obstruction requiring surgery several years ago, he is is relatively healthy. During 2 different baseball games, he has broken 2 bones in 3 weeks (casts on both arms). He has joint pain in his knees, chronic foot pain (we believe a long term effect from the chemo), and has been extremely fatigued lately. They also said they saw a ganglion cyst on his wrist area when they did the MRI. This was an orthoped who does not know any other back medical history. Is there a red flag here I should be concerned with? Could the cyst be anything other than a cyst?