Theresa J.C. Pazionis, MD, MA

Clinical Locations

Primary Location

Fox Chase Cancer Center
333 Cottman Avenue
Philadelphia, PA 19111


Assistant Professor, Orthopaedic Surgery & Sports Medicine, Lewis Katz School of Medicine at Temple University


Treatment Focus

Orthopedic oncology; Primary malignant bone tumors: osteogenic sarcoma, chondrosarcoma, Ewing's Sarcoma, MFH etc.; Metastatic disease to bone; Primary malignant soft tissue tumors: sarcoma; Benign and benign aggressive bone tumors: giant cell tumor, etc.; Benign and benign aggressive soft tissue tumors; Metabolic bone disease

Treatment Philosophy

I take an evidence based, patient centered approach to your evaluation and treatment. Each consultation will begin with listening to your questions and concerns, and a thorough medical history, physical examination, and review of any available imaging. Together we will decide on the best treatment course within the framework of evidence based gold standard medical care. I treat every patient with the same care and compassion that I would expect for myself and my family.

Education and Training

Educational Background

  • MD, University of Toronto, Toronto, Ontario, Canada
  • Fellowship, Spine Surgery, Hospital for Special Surgery, New York, NY
  • Fellowship, Orthopaedic Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
  • Residency, Orthopaedic Surgery, McMaster University, Hamilton, Ontario, Canada


  • Fellow of the Royal College of Surgeons of Canada
  • American Association of Orthopedic Surgeons
  • International Society of Limb Salvage (ISOLS)
  • Musculoskeletal Tumor Society (MSTS)
  • North American Spine Society (NASS)
Research Profile

Research Interests

Evaluation, treatment and outcomes in metastatic bone disease; Function and oncologic outcomes in the treatment of metastatic spine disease; Chondrosarcoma; Spinal biomechanics

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