Ravinder K Grewal M.D. FACNM, gained her medical degree in 1995 from Punjab University, India. Following Internal Medicine internship and Nuclear Medicine residency at MCP Hahnemann University Hospital in Philadelphia, Pennsylvania, she completed her Nuclear Oncology fellowship at Memorial Sloan Kettering Cancer Center, New York, NY. Dr Grewal is currently an Associate Professor of Radiology, at Joan and Sanford I. Weill, Medical College of Cornell University New York, NY and Associate Attending Physician at Memorial Sloan Kettering Cancer Center, New York, NY. Her research focus has centered on role of I 124 PET in lesion dosimetry in metastatic differentiated thyroid cancer.