Dr Sophie Leboulleux is board certificated in endocrinology, nuclear medicine and oncology. She works in the department of Nuclear Medicine and Endocrine Oncology in Villejuif, France where she is responsible of the Thyroid Cancer MultidisciplinaryTeam. Her current clinical interests include treatment and follow up of thyroid cancer from thyroid nodule to radioactive iodine refractory thyroid cancer and imaging of cancer with TEP. Her current research is focused on the role of adjuvant radioactive treatment administration and on radioactive refractory thyroid cancer. She leads a prospective randomized study on the utility of postoperative radioactive iodine treatment, a prospective study on redifferentiation and has been co-investigator of the major trials in Radioactive iodine refractory differentiated thyroid cancer and on medullary thyroid cancer. She is Chief of the Department of Nuclear Medicine and Assistant in the Department of Endocrine Oncology.