The Gerd Muehllehner Professorship of Radiology

The Professorship was established with the gifts of Gerd Muehllehner, PhD, his wife, Ursula Lisbeth Muehllehner, and their friends to support a faculty member in the Department of Radiology at the Perelman School of Medicine.

Gerd and Ursula Muehllehner have contributed to the development of positron emission tomography (PET) technology in both academia and industry. Following Gerd’s ten years on the faculty at Penn, he and Ursula, a Wharton graduate, started UGM Medical Systems to commercialize PET technology developed at Penn. Now in retirement, the Muehllehners support environmental and historical organizations in the Wisconsin area.

The Professorship was originally begun as a PET research fund supported by the Muehllehners, David A. Mankoff, MD, PhD, and Jean Cho. To broaden the application of the fund, it was converted into the Professorship, which was supported with additional funding from Joel Karp, PhD and Janet J. Karp.

Current Chairholder Daniel Pryma, MD

Daniel Pryma, MD is the Gerd Muehllehner Professor of Radiology. He serves as the Associate Director for Clinical Research in the Abramson Cancer Center and Chief of the Division of Nuclear Medicine Imaging and Therapy at the Perelman School of Medicine of the University of Pennsylvania. His research focuses on therapeutic radiopharmaceuticals and companion diagnostics. He is also Co-Leader of the Radiobiology and Imaging Program of the Abramson Cancer Center and serves as Chair of the Imaging Committee for NRG Oncology. 

Past Chairholder

• David Mankoff, MD, PhD 2013-2021