Surgical Oncology

Surgical oncology is a specialty that focuses on the surgical treatment of a variety of tumors.

Dr. Contreras is a distinguished surgical oncologist renowned for integrative cancer care. He completed his specialty in surgical oncology at the University of Vienna in Austria, where he graduated with honors.

Surgical oncology is a specialty that focuses on the surgical treatment of a variety of tumors. It is used to diagnose, stage and treat cancer. As Medical Director of Oasis Hospital, Dr. Francisco Contreras has performed thousands of surgical oncology procedures. Together with his medical team, Oasis of Hope has treated over 100,000 patients from all over the world.

Contact Us About Surgical Oncology Treatment

To learn more about your cancer surgery or other treatment options, call Oasis Hospital at (619) 690-8417


Types of Surgical Oncology

The goals of the surgical oncologist are to remove the cancer and an area of healthy tissue surrounding it, also known as a clear margin or clear excision, in order to prevent the cancer from recurring in that area (which is called a local recurrence). Sometimes it is not possible to remove the whole tumor, and a surgery known as “debulking” may be done to remove as much of the tumor as possible and to relieve symptoms such as pain, airway obstruction, or bleeding. However, the contribution of the surgical oncologist goes beyond what is done on the day of surgery itself.


As part of the multidisciplinary care team, he or she provides expert opinion about biopsy techniques, optimal image guidance, the likelihood of achieving clear margins (especially in borderline resectable cases), and what role there is, if any, for surgical management of more advanced disease.

The types of surgeries that are done for cancers depend on the stage and location of the tumor and the fitness of the patient for surgery, and will continue to evolve as surgical techniques advance. Your surgeon will discuss with you the surgery that is appropriate for your situation and the risks and benefits of the procedure.