Dr. Jimenez is a Professor of Endocrine Neoplasia and Hormonal Disorders at the MD Anderson Cancer Center in Houston, TX. He has performed extensive clinical research in the field of endocrine cancer with a particular interest in pheochromocytomas and paragangliomas. Dr. Jimenez was one of the first clinicians to describe the use of tyrosine kinase inhibitors in patients affected with sporadic and hereditary malignant pheo and paras. His observations led to the development of prospective multi-institutional and international clinical trials. Dr. Jimenez also characterized inherent complications related to excessive hormonal secretion and tumor burden distinctive of this disease.