Leonard S. Sender, M.D. received his medical education in South Africa at the University of Witwatersrand in Johannesburg and completed his pediatrics internship and residency at the University of California, Irvine (UC Irvine) Medical Center in Orange. His pediatrics hematology/oncology subspecialty training included the Children?s Hospital of Los Angeles (CHLA). Dr. Sender is board certified both in Pediatrics and Pediatric Hematology/Oncology. His professional interests are strongly centered on the diagnosis, treatment, and epidemiology of adolescent and young adult cancers (patients between the ages of 15 and 29). Dr. Sender is currently Medical Director of the Cancer Institute at Children?s Hospital of Orange County (CHOC); Pediatric Subspecialty Faculty (PSF) Division Chief of Oncology; and Medical Director of Clinical Oncology Services at the UC Irvine Medical Center?s Chao Family Comprehensive Cancer Center.