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Ductal carcinoma is the most common type of breast cancer. It starts in the ducts of the breast. Cancer can start in other parts of the breast, too. Learn more about symptoms, diagnosis, and treatments.

An angiogram is a type of imaging test. It uses X-rays to look at your blood vessels. An abdominal angiogram looks at the blood vessels in your belly (abdomen). Read on to learn why it's done and what to expect before, during, and after this test.

Magnetic resonance imaging (MRI) uses a large magnet, radiofrequencies, and a computer to make detailed pictures of organs and structures within the body. It is used to diagnose health problems.

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.

Detailed information about peak flow measurement, a quick test to measure air flowing out of the lungs.

In cardiac catheterization (often called cardiac cath), a very small hollow tube, or catheter, is advanced from a blood vessel in the groin, arm, or neck through the aorta into the heart. Once it is in place, several diagnostic and treatment procedures can be done using catheterization.

Bullying is very common. About 1 in 5 children and teens ages 12 to 18 report that they were bullied over the last 12 months.

A traumatic response in a child can change their sleep schedule or behavior. A child with emotional trauma also might become violent or lose interest in things they once enjoyed. If you think that your child might have trauma, there are ways to help.

Vaccines are an important part of a healthy life for your child. Learn why they are beneficial, how they work, whether they are safe, and which ones your child needs.