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An abscess is a pocket of pus that forms around an infection. Pus is a fluid made up of germs (bacteria), white blood cells, and other matter. Draining pus from an infected area or organ inside the body may be needed. This helps heal the infection.

Bile normally passes out of the liver through a series of tubes (ducts). Bile can back up into the liver if a duct becomes blocked. It can also back up if a hole or tear forms in a duct. Biliary drainage is a procedure to drain bile from the liver.

A bone X-ray is a way to take pictures of bones. Low dose radiation (X-rays) is passed through the body, producing images of the bones on film.

Embolization is a procedure to block a blood vessel. It is done to stop severe bleeding. Or it is done to stop blood flow to a part of the body. A catheter (thin, flexible tube) is put into a blood vessel through a small incision. It is often done by a doctor called an interventional radiologist.

Fallopian tube catheterization helps open a blocked fallopian tube. This procedure can improve your chances of getting pregnant.

A biopsy is a small sample of tissue or fluid taken from your body. This sample is then studied in a lab. Image-guided biopsy lets your doctor take a sample from an abnormal mass without using surgery.

Percutaneous nephrostomy is a procedure where a small tube (catheter) is put through your skin into your kidney to drain your urine. This procedure is done by a specially trained healthcare provider called an interventional radiologist.

Peripheral arterial angioplasty may be done to restore blood flow when you have a narrowed or blocked artery in your arm or leg. A stent may also be used to hold your artery open. Learn what to expect from this procedure.

A PICC takes the place of a standard IV (intravenous) line. It is often used when treatment needs you to have medicine or nutrition for weeks or months. Here's what you need to know about getting a PICC.