We Take Your Fight With Cancer Personally

Sarcoma Center of Excellence

Dr. Seetharam, Dr. Recine, Dr. Seidel


Our Expertise 

The Sarcoma Center of Excellence at the Virginia G. Piper Cancer Center is one of the few centers in the nation that specializes in treating sarcoma. With a collaboration of bone and soft tissue cancer specialists and researchers, the Sarcoma Center of Excellence uses a multidisciplinary team approach for care and treatment, which includes adult medical oncology, surgery, pathology, diagnostic radiology, orthopedics, radiotherapy and plastic surgery. 

Our Personalized Treatment 

  • The diagnostic radiologist and pathologist are involved with defining the tumor location, diagnosis and staging of the disease. 
  • The surgical, medical and radiation oncologist work together in a multidisciplinary manner designing a treatment plan that is critical to successful management to a patient's disease. 
  • The Sarcoma Center of Excellence also draw on the skills of our supporting staff including genetic counseling, social work, rehabilitation, nutrition and pain management if necessary. 

Our Surgeons 

Matthew J SeidelMatthew J Seidel, M.D., Medical Director

Dr. Seidel is board certified by the American Board of Orthopaedic Surgery and a Fellow of the American Association of Orthopaedic Surgeons. He currently serves as Medical Director of the Sarcoma Center of Excellence at the Virginia G. Piper Cancer Center. 

Dr. Seidel received his medical degree from the Ohio State University College of Medicine and spent two years in Columbus, where he was chosen as one of a few students to complete their third and fourth clinical years at the prestigious Cleveland Clinic. While at Ohio State, he was twice awarded the Roessler research fellowship for research exploring new anesthetics for cardiac surgery. 

Dr. Seidel then completed his orthopaedic surgery training locally at the Phoenix Orthopaedic Residency program based out of Maricopa County Hospital, the Phoenix VA Hospital and Children's Rehabilitation Services Clinic. In addition to his extensive experience in Orthopaedic trauma, he developed special interests in musculoskeletal oncology, as well as joint replacement surgery. In 2005, he completed a one-year Musculoskeletal Oncology fellowship at M.D. Anderson Cancer Center in Houston, TX. The primary focus of his training was the surgical treatment of adult and pediatric patients with cancers arising in the bones and soft tissues of the pelvis and limbs, and the treatment of skeletal metastatic disease. An important part of this training involved limb-sparing surgery and major joint and limb reconstruction. During this fellowship, Dr. Seidel completed two major research projects concerning cancerous cartilage tumors, and presented them both at national orthopaedic meetings. 

Dr. Seidel is a member of the Arizona Medical Society, the Connective Tissue Oncology Society and the Musculoskeletal Tumor Society, Orthopaedic Surgical Oncology of Arizona (OSO), and Specialty Orthopaedic Surgery (SOS).


Judd Cummings, MD

Dr. Cummings is a board-certified, fellowship-trained orthopedic surgeon specializing in musculoskeletal tumors, adult and pediatric limb salvage surgery, and joint replacements.

Originally from Salt Lake City, Utah, Dr. Cummings attended college at Brigham Young University where he was a Hinckley scholar. Following graduation, he attended medical school at Creighton University where he graduated with Magna Cum Laude honors and as a member of the prestigious Alpha Omega Alpha Medical Honor Society.

Dr. Cummings went on to complete his orthopedic surgery residency at the world-renowned Campbell Clinic in Memphis, Tennessee, where he was elected Chief Resident prior to graduation. Dr. Cummings also had the unique opportunity of training at St. Jude Children’s Hospital gaining broad exposure to pediatric sarcoma surgery.

In 2007, Dr. Cummings returned to Salt Lake City to complete a Musculoskeletal Oncology Fellowship at the University of Utah / Huntsman Cancer Center, where he gained extensive experience in the diagnosis and management of benign and malignant bone and soft tissue tumors. He conducted both basic science and clinical research resulting in numerous peer-reviewed publications and presentations nationally and internationally. Most recently, Dr. Cummings practiced for several years in Indiana serving as an Assistant Professor of Orthopedic Surgery within the Indiana University School of Medicine.

Dr. Cummings’ ongoing research interests include utilization of large structural allografts, the use of compliant fixation for mega-endoprothestics, and development of novel therapeutic strategies for malignant bone tumors, and his clinical expertise includes the diagnosis and management of primary or metastatic bone and soft tissue tumors or tumor-like conditions and major joint or limb reconstruction.

He is board certified by the American Board of Orthopedic Surgery (ABOS), a fellow of the American Academy of Orthopedic Surgeons (AAOS), a member of the Connective Tissue Oncology Society (CTOS) and a candidate member of the Musculoskeletal Tumor Society (MSTS).


Our Clinical Team 

Mahesh SeetharamMahesh Seetharam, M.D., Medical Oncology

Dr. Seetharam, a specialist in hematology and medical oncology, is board certified in hematology, medical oncology and internal medicine by the American Board of Internal Medicine. 

He received his medical degree from the Government Medical College in Mysore, India. He then completed his internship in internal medicine in the United Kingdom, his residency at the Albert Einstein School of Medicine in New York and his fellowship training in hematology and medical oncology at Stanford University Hospital in California. 

During his fellowship, Dr. Seetharam served as an investigator on multiple clinical trials for patients with myelodysplastic syndrome, and presented his work at the annual American Society of Hematology meetings. He has written a phase II protocol for Ewing’s sarcoma which is currently in the approval process. 

Dr. Seetharam is a member of the American Society of Hematology, American Society of Clinical Oncology, and Arizona Oncology.  


Diane RecineDiane Recine, M.D., Radiation Oncology

Prior to coming to Phoenix, Dr. Recine practiced as a Radiation Oncologist at Rush-Presbyterian-St. Luke's Medical Center in Chicago. Dr. Recine had previously taught Radiation Oncology at the University of Chicago and served as Assistant Professor of Radiation Oncology at Rush Medical College, while practicing there in Radiation Oncology. She also held the position of Director of Residency Program, Department of Radiation Oncology, at Rush-Presbyterian-St. Luke's Medical Center. Dr. Recine earned her medical degree at University of Health Sciences, Chicago Medical School, and completed a residency in Radiation Oncology at Rush-Presbyterian-St. Luke's Medical Center. 

Dr. Recine's areas of clinical interest and specialization include the treatment of breast cancer, lymphomas, soft tissue sarcomas, gastrointestinal cancer, and head and neck cancer. She has specific interest and expertise in the use of intensity modulated radiation therapy (IMRT), stereotactic radiotherapy, and image guided radiation therapy (IGRT) using the Novalis system. She is Board Certified in Radiation Oncology by the American Board of Radiology. 

For more information, contact the Sarcoma Center of Excellence at the Virginia G. Piper Cancer Center at 480-323-1255.