Dr. Mostafa Al-Sharkawi, Dean of the Assiut University South Egypt Cancer Institute, stated that the Institute witnessed the presentation of the results reached by Physician Ahmed Abdel-Wahab, Assistant Lecturer of Children's Cancer, in his PhD. Dissertation. The dissertation handled the most important results of the transplantation of stem cells in cases of children with blood malignant tumors. the research aimed at studying the death rates related, risk factors, and the side effects of the transplantation on the thyroid gland considering that this is one of the most important complications that has not been studied before.