Ultrasonography

Gallbladder Cancer - Diagnosis

ON THIS PAGE: You will find a list of common tests, procedures, and scans that doctors use to find the cause of a medical problem. Use the menu to see other pages.

Doctors use many tests to find, or diagnose, cancer. They also do tests to learn if cancer has spread to another part of the body from where it started. If the cancer has spread, it is called metastasis. Doctors may also do tests to learn which treatments could work best.

Ultrasound

An ultrasound is used to find a tumor by showing the tumor's exact location in the body. It can also help a doctor perform a biopsy. A biopsy removes a small amount of tissue for examination.

How does an ultrasound work?

An ultrasound is an imaging test. It is also called sonography or ultrasonography. It uses high-frequency sound waves to create pictures of internal organs. The sound waves are sent and bounce back when they reach the organs. A device called a transducer turns the sound waves into images.

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