A barium enema (lower GI series) involves the introduction of a solution into the rectum to obtain high contrast X-rays of the colon. Learn what to expect.

Many people turn to enemas or laxatives to have a bowel movement. However, enemas are not always safe, and using them to treat constipation has risks.

Find out what you need to know about a barium swallow or small bowel follow-through, and what these procedures can diagnose.

A computed tomography (CT) scan is a type of X-ray that produces cross-sectional images of the body. Learn what to expect, including the risks and benefits.

Esophageal cancer may be diagnosed with a combination of endoscopy, barium swallow, and endoscopic ultrasound, with tests such as PET done for staging.

GoLytely (Polyethylene Glycol 3350 and Electrolytes) is an oral medication used to cleanse and prepare the bowel for a colonoscopy or other procedure.

Learn about X-ray imaging, used to photograph internal structures of the body. While common and useful, this test does carry some some risks.

Intussusception is a serious condition that occurs when a portion of the intestines moves inside itself (like a telescope) and causes a blockage.

A rare heart condition, an enlarged right atrium of the heart often goes unnoticed for years. However, it can cause complications or even death.

A virtual colonoscopy uses a CT scan to visualize the colon and screen for colon cancer. Learn about when and how it is used, its limitations, and side effects.