====== Leonardo Rangel-Castilla ====== Leonardo Rangel-Castilla, MD, is a [[cerebrovascular]] and endovascular [[neurosurgeon]]. He completed his neurosurgery residency at Methodist Neurological Institute in Houston, TX. He pursued additional [[fellowship]] training in cerebrovascular and skull base at the Barrow Neurological Institute and neuroendovascular surgery at the University of Buffalo, Buffalo, NY. Currently, he is an assistant professor at the Mayo Clinic, Rochester, MN. Dr. Rangel-Castilla has published more than 100 articles and has co-edited the neurosurgical textbook Neuroendoscopic Surgery.