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If lung cancer is found early, when it’s small and hasn’t spread, successful treatment is more likely. But lung cancer can be hard to catch at an early stage. People with lung cancer often don’t show symptoms until it’s more advanced. Even then, it’s easy to attribute those symptoms to other causes.

A risk factor is anything that increases your chance of getting a disease. When it comes to cancer, risk factors can be what you eat, where you work, and who your parents are.

Children and teens with obesity face many physical health challenges. But they are also more likely to develop mental health problems such as depression or other mood disorders.

An indwelling peritoneal catheter is a thin, rubber tube. One end is placed in your abdomen and the other outside the body. It’s used to drain fluid from the abdominal cavity (peritoneal cavity).

Nearly 25% of heart valve patients feel depressed after surgery, even when it goes well. This is called cardiac depression. Knowing what you may experience emotionally after surgery can help you prepare for it—and identify it—if depression does happen.

Coronary microvascular disease (CMD) is also sometimes called small artery or small vessel disease. It occurs when the inner blood vessels of the heart become damaged. In some cases, the small arteries of the heart don’t function properly.

A large bowel obstruction occurs when part or all of your large intestine is blocked. As a result, waste can't move through your bowel correctly and out of the body. You must be treated right away to manage the blockage.

Do you often have burning pain in your chest? You may have esophagitis. This is when the lining of the esophagus becomes red and swollen (inflamed).

MRI of the breast is an imaging test that uses strong magnets and radio waves to form pictures of the inside of the breast and of the tissues that surround the breast. Breast MRI is used to check for problems. Read on for what to expect when you have a breast MRI.