Michael A. Arnold, MD, PhD is the Medical Director of Anatomic Pathology at Children’s Hospital Colorado, and an Associate Professor of Pathology at the University of Colorado, in Denver, Colorado. He completed residency training in Anatomic Pathology at the University of Texas Southwestern Medical Center at Dallas and at the National Cancer Institute of the National Institutes of Health. While at the National Cancer Institute, he completed a research fellowship in ultrastructural pathology and pediatric tumor pathology with Dr. Maria Tsokos. Following his research fellowship, Dr. Arnold moved to Nationwide Children’s Hospital where he completed a pediatric pathology fellowship and became a staff pathologist. After serving as a staff pathologist and later the Director of Surgical Pathology, he moved to Children’s Hospital Colorado in 2019 to become the Medical Director of Anatomic Pathology. Dr. Arnold practices general pediatric surgical pathology, including autopsies, gastrointestinal biopsies and pediatric cancers. He has been active in the Soft Tissue Sarcoma group in Children’s Oncology Group (COG) since participating in the Young Investigator program in 2014, mentored by Dr. Erin Rudzinski, and is now a central pathology reviewer for COG rhabdomyosarcoma clinical trials. Dr. Arnold has authored over 60 peer reviewed manuscripts, as well as invited reviews and a book chapter on pediatric bone tumors. He lectures on various topics in pediatric pathology, including his April 2020 lecture on pediatric tumors for the College of American Pathologists (CAP) Virtual Lecture series.
