Glioma Expert Witnesses

Los Angeles, California

Neurological Surgery, Spine Surgery & Spine Care - Neuro-oncology, Brain tumors, Brain hemorrhage, Spine Fusion, Spinal stenosis, Meningioma, Glioma, Brain metastasis, Disc herniation, Cauda equina syndrome, Traumatic brain injury, Pituitary tumors, Skull base tumors, Spine tumors, Cord compression, Stroke, Hydrocephalus, Neurosurgery, Spine Surgery

Christopher A. Sarkiss, MD, FACS, FAANS, FCNS is a board-certified, fellowship-trained neurosurgeon with a subspecialty focus in neurosurgical oncology and spine. Dr. Sarkiss is the Founder and Chairman of the Global Brain & Spine Institute. He specializes in the treatment of complex, minimally-invasive brain and spine surgery. Dr. Sarkiss graduated summa cum laude from UCLA with a Bachelor of Science in Neuroscience and a minor in Political Science. Thereafter, he attended the David Geffen School of Medicine at UCLA for medical school graduating with honors. He then joined the Department of Neurosurgery at the Icahn School of Medicine at Mount Sinai in New York City to complete his neurosurgical residency. Afterwards, Dr. Sarkiss completed a surgical neuro-oncology fellowship at Jackson Memorial Hospital and the University of Miami Health System. Additionally, he served as a clinical research fellow where his research efforts focused on neuro-oncology, spine, socioeconomics, machin...

Sacramento, California

Oncology, Neurology - Glioblastoma, Glioma, Primary Brain Tumors, Meningioma, Brain Cancer, Oligodendroglioma, Low Grade Glioma, Astrocytoma

Dr. Orwa Aboud is one of only 385 UCNS board-certified neuro-oncologists in the United States. He specializes in the diagnosis and management of primary brain tumors, particularly gliomas, with expertise spanning metabolomics, molecular markers, and biomarker-based diagnostics. With over 40 peer-reviewed publications, Dr. Aboud’s research integrates advanced technologies such as machine learning and imaging to improve treatment strategies and patient outcomes. He has led multiple clinical trials and engages in translational research to bring innovative therapies from bench to bedside. Dr. Aboud envisions transforming the field through precision medicine and collaborative research, bridging the gap between scientific discovery and clinical care. As an Assistant Professor at UC Davis, Dr. Aboud brings a data-driven, patient-centered approach to neuro-oncology, making him a sought-after clinician, researcher, and expert in the field.

Orlando, Florida

Neurology, Hospice and Palliative Care - Neuro-oncology, brain tumor, brain cancer, glioblastoma, glioma, brain metastases, spinal tumors, neurofibromatosis, delayed diagnosis, misdiagnosis, standard of care, causation, medical malpractice, negligence, complications of cancer therapy, chemotherapy, neurology, expert witness

Ivo W. Tremont-Lukats, M.D. Director, Neuro-Oncology — AdventHealth Medical Group, Orlando, FL PERSONAL STATEMENT My practice centers on evidence-based patient care in adult neurology, with a particular focus on neuro-oncology. My clinical work covers the full range of brain and spinal tumors — including gliomas, glioblastoma, brain metastases, and neurofibromatosis — as well as the neurological complications of cancer therapy. My broader neurology experience includes dementia and cognitive impairment, stroke, headache disorders, epilepsy, traumatic brain injury, autoimmune CNS diseases such as multiple sclerosis, and post-COVID neurological sequelae. I bring this perspective to case review involving diagnosis, causation, and standard of care. EDUCATION & TRAINING • M.D., Medicine — Universidad de Los Andes, Mérida, Venezuela (1987) • Internal Medicine Residency — Universidad Central de Venezuela (1989–1992) • Medical Oncology Subspecialty Residency — Universidad Central de Venezu...