About Dr. Jeffrey Greenfield: Jeffrey Greenfield, MD, PhD is a board-certified pediatric neurosurgeon at NewYork-Presbyterian/Weill Cornell Medical Center. Dr. Greenfield, a native New Yorker, graduated from Amherst College Magna Cum Laude in Neuroscience before receiving his M.D. and Ph.D. degrees from the Weill Medical College and Graduate School of Medical Sciences. His laboratory mentor during his PhD was Paul Greengard at The Rockefeller University, who won the Nobel Prize for Medicine in 2000. He completed his Neurosurgery residency at The NewYork-Presbyterian Hospital/Weill Cornell Medical Center and Memorial Sloan Kettering Cancer Center. During residency he was awarded a scientific fellowship with Howard Hughes Scientist Shahin Rafii in Stem Cell Biology at the Ansary Center for Stem Cell Therapeutics.
Following residency he completed his fellowship in pediatric neurosurgery at the Children's Hospital of Philadelphia, one of North America's premier fellowship programs. By the completion of training, he had performed more than 2500 neurosurgical procedures at three of the best cancer facilities in the world: Memorial Sloan Kettering Cancer Center, NewYork-Presbyterian Hospital, and The Children's Hospital of Philadelphia.
Dr. Greenfield brings a unique mixture of scientific curiosity and clinical acumen to his position at Cornell. Expansion of several clinical programs, including pediatric epilepsy surgery, functional neurosurgery, spine surgery and skull base tumor surgery, have already been initiated under his direction. His basic science laboratory is studying the cellular mechanisms driving the transformation of low-grade astrocytomas, the most common benign brain tumor in children into more malignant tumors. Specifically he is looking at the events that stimulate neo-angiogenesis or new blood supply to the tumors with the intention being to design novel therapies to keep tumors in a benign state indefinitely.
Fellow ChiariCARE providers:
About Dr. Mark Souweidane: Mark M. Souweidane, MD has dedicated his career to the surgical treatment of children with brain and spinal disorders. His talents as a surgeon are paralleled by a caring attitude and time commitment to patients and their families. That the Weill Cornell Medical College is a recognized leader in Pediatric Neurosurgery is a direct result of his recruitment in 1995 and his ongoing devotion to contemporary surgical techniques and investigative endeavors. Specialized surgical skills have gained him international reputation for specific procedures, including removal of intraventricular brain tumors, management of pineal region tumors, treatment of congenital cysts, and surgery for Chiari malformation. In addition to the development of a world-class Pediatric Neurosurgery service, he has championed minimal access neurosurgery. His publications, clinical case volume, and practical courses continue to draw patients and practitioners that benefit from his endoscopic talents. His commitment to the education of future pediatric neurosurgeons is reflected in his participation on the Committee of Admissions for the medical college, his lectures to medical school students, his role as resident advisor, and resident mentoring at one of the country's premier training programs. Surgical areas of expertise include:
>> Removal of intraventricular brain tumors >> Endoscopic intracranial surgery >> Tumors (colloid cyst, benign astrocytoma) >> Hydrocephalus (endoscopic third ventriculostomy) >> Congenital cysts (endoscopic fenestration) >> Treatment for Chiari malformations and syringomyelia >> Management of pineal region tumors >> Removal of intramedullary spinal cord tumors >> Correction of craniofacial disorders >> Multidisciplinary treatment of pediatric vascular abnormalities (arteriovenous malformations, Moyamoya disease, and cavernous malformations)
Dr. Souweidane currently serves as the Vice Chairman of the Department of Neurological Surgery and the Director of Pediatric Neurological Surgery at the Weill Cornell Medical College and Memorial Sloan-Kettering Cancer Center. He is an associate professor in Neurological Surgery and Pediatrics.
About Dr. Philip Stieg: Philip Stieg, PhD, MD is the Professor and Chairman of the Department of Neurological Surgery at Weill Cornell Medical College and Neurosurgeon-in-Chief at NewYork-Presbyterian Hospital.
He received his B.S. degree in 1974 from the University of Wisconsin at Madison, his Ph.D. in Anatomy and Neuroscience from Albany Medical College of Union University in 1980, and his M.D. from the Medical College of Wisconsin in 1983. He completed his internship and residency at the University of Texas Southwestern Medical School and a fellowship in cell transplantation for restorative neurological function at Karolinska Institute in Stockholm, Sweden.