Williams Cancer Institute

12/23/2025

Jason R. Williams, MD is a board-certified radiologist, image-guided cancer specialist, researcher, and professor. A pioneer in intratumoral immunotherapy, he performed the world’s first ablation combined with intratumoral immune agents, transforming ablation into an immune-activating therapy.

Founder and Director of Interventional Oncology and Immunotherapy, he has led thousands of innovative procedures and advanced image-guided cancer treatments across the U.S. and Mexico, with a vision to make cancer a distant memory of the past.

12/23/2025

Hypothyroidism is common in cancer patients but often overlooked because its symptoms mimic cancer and treatment side effects. Early detection and treatment can greatly improve quality of life.
https://williamscancerinstitute.com/hypothyroidism-and-cancer-the-diagnosis-that-often-goes-unnoticed/

  Hypothyroidism is one of the most common hormonal disorders in the general population and, in most cases, its treatment […]

12/19/2025

Cancer Treatment Should Begin at the Biopsy

Cancer treatment shouldn’t wait.
The moment a biopsy is performed is the first real chance to act. A needle is already inside the tumor—yet no therapy is delivered. Instead, inflammation can increase tumor aggressiveness while time allows cancer to grow and spread.

This is a missed opportunity in modern cancer care.
We believe biopsies should do more—and we’re working to change that.

12/18/2025

Intratumoral immunotherapy is changing how we think about cancer treatment. By delivering immune-activating agents directly into the tumor, this approach helps reprogram the tumor microenvironment and awaken the body’s own defenses—locally and systemically.

In this video, we break down how intratumoral immunotherapy works, why local treatment can lead to broader immune effects, and how this strategy is opening new paths in precision oncology.

12/17/2025

This video explains an innovative cancer therapy that combines pulsed electric field (PEF) ablation with intratumoral immunotherapy. By selectively destroying tumor cells and activating the immune system, this approach not only treats the targeted tumor but also triggers a systemic immune response known as the abscopal effect. The result is a personalized, immune-driven attack against cancer throughout the body.

12/17/2025

Cancer isn’t driven only by tumor cells. Some treatments like chemotherapy can temporarily reshape the tumor microenvironment and unintentionally favor cancer spread. Understanding and blocking these effects could lead to more precise anti-metastatic therapies.
https://williamscancerinstitute.com/chemotherapy-and-metastasis-an-unexpected-biological-paradox/

  Cancer treatment is rarely a simple intervention. Each therapy applied to a tumor triggers a cascade of biological responses […]

12/16/2025

Starting advanced cancer treatment can feel overwhelming—but having the right information makes all the difference.
This video answers the most common questions patients ask before beginning modern, personalized cancer therapies. Clear answers. Real expectations. Informed decisions.

12/16/2025

Study Uncovers Previously Unrecognized Effect of Chemotherapy

A study conducted primarily in mice suggests that pre-surgical chemotherapy in breast cancer can cause changes in cells in and around the tumor that aid metastasis.

12/15/2025

CT scans can be life-saving—but they also carry risks.
Large studies show that repeated exposure to ionizing radiation from CT imaging is associated with an increased cancer risk, especially with cumulative scans over time.

Imaging is a powerful diagnostic tool, but patients deserve to understand both the benefits and the risks. Informed patients are empowered patients—and education is part of responsible medicine.

12/15/2025

The Immunotherapy Revolution explores how the immune system has become one of the most powerful weapons against cancer. In a clear and accessible way, Dr. Jason Williams explains the breakthroughs that are transforming modern oncology and why immunotherapy is reshaping the treatment paradigm. An essential read to understand the present and future of the fight against cancer.

12/12/2025

"Science isn’t consensus — it’s questioning, debating, and improving. The word ‘cure’ isn’t a scientific metric. Real oncology must rely on real endpoints like overall survival and progression-free survival. Let’s bring true science back into medicine."

12/12/2025

Radiotherapy does more than destroy tumor cells—it can trigger the abscopal effect, a systemic immune response that shrinks tumors outside the radiation field. When combined with immunotherapy, this effect strengthens, offering new hope for patients with advanced cancer.

  Approximately half of all patients worldwide diagnosed with cancer receive radiotherapy as part of their treatment, whether with curative […]