Sielaff was appointed the Eugene W. and Elizabeth B. Leonard Trusts Chair in Oncology and medical director of the Virginia Piper Cancer Institute in 2004.
His clinical interests focus on benign and malignant tumors of the liver, bile ducts and pancreas. This includes primary and metastatic liver cancer, pancreatic cancer and gallbladder cancer. Sielaff is experienced in the management of post laparoscopic cholecystectomy bile duct injuries and bile duct strictures. He performs laparoscopic and open resections of the liver and pancreas, radiofrequency ablation and hepatic artery infusion pump placement.
Education
1984 - Bachelor of Science, University of Wisconsin - Madison
1989 - Doctor of Medicine, Medical College of Virginia, Richmond
1997 - Doctor of Philosophy Surgery, University of Minnesota - Minneapolis
Postdoctoral Training
1989-1997 - Surgery Residency, University of Minnesota Hospital and Clinics