Overview

The liver is the largest of our internal organs, with four lobes, and sits just beneath the right lung. Liver cancer begins in hepatocytes, the main liver cells. Radiation is one of the many treatment options.

For patients not eligible for surgery—such as those with a single kidney or poor surgical candidacy—or to ease symptoms like bleeding and pain, radiation therapy plays a key role in managing liver tumors.

Proton Therapy for Liver Cancers

Why proton therapy?

Treating liver cancer with radiation requires precision because of the liver’s proximity to the colon, lungs, and other critical organs. Proton beams deliver high doses directly to the tumor and conform to its shape, minimizing radiation to surrounding tissues. Unlike X-rays, protons stop at the tumor and do not exit the body.

Liver cancer facts

Liver cancer is less common in the U.S. than elsewhere, but nearly 30,000 Americans die from it annually. Symptoms often appear only at advanced stages. Risk factors include heavy alcohol use, tobacco, obesity, and type 2 diabetes.

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