A 14-year-old boy presented with headaches, and a tumor was…

A 14-year-old boy presented with headaches, and a tumor was found in the cerebral ventricles. He achieved a disease-free survival of 18 months with a combination of surgery, stereotactic radiosurgery, and chemotherapy.  Image prior to surgery Cells expressed: CD19, CD20, CD22, CD10, sIg, Myc, KI67 He was diagnosed with