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CT angiography is a type of medical test that combines a CT scan with an injection of a special dye to produce pictures of blood vessels and tissues in a part of your body.

Cecostomy is a procedure to clear a child's bowels of feces when other treatments have not worked. It's used for children with fecal incontinence caused by major health problems. It involves the surgical placement of a tube through the skin of the belly into the first part of the large intestine.

Vasectomy is surgery a man may choose if he doesn't want to father any more children. It is permanent male birth control.

Roux-en-Y gastric bypass (RYGB) is a type of weight-loss surgery. Weight-loss surgery is also called bariatric surgery. It's often done as a laparoscopic surgery, with small incisions in the abdomen.

A lobectomy is a surgery to remove 1 of the lobes of the lungs. Learn more about the procedure, such as why you might need one, what the risks are, and what to expect.

A biopsy is a test done to remove a tissue sample from the body so it can be examined. A lung biopsy is a test to take a small piece of a lung.

Pulse oximetry is a test used to measure the oxygen level (oxygen saturation) of the blood. It is an easy, painless measure of how well oxygen is being sent to parts of your body furthest from your heart, such as the arms and legs.

Pleural biopsy is a procedure to remove a tissue sample from the pleura, the membrane that surrounds the lungs.

A mammogram is a way to look at your breast using X-rays. It is used to find and diagnose breast disease in women. Read on to learn more details about when and why to get a mammogram, and what you can expect when having it done.