Arvydas D. Vanagunas MD FACP FACG


Virtual Colonoscopy

Discusses virtual colonoscopy (computed tomographic colonography). Covers why and how it is done. Explains how it differs from a regular colonoscopy. Covers things to think about when choosing virtual colonoscopy.

Sigmoidoscopy: Step 1

You will lie on your left side with your knees pulled up to your belly. The doctor will gently put the thin, flexible sigmoidoscope (scope) in your anus and move the scope slowly through your rectum and lower colon.

Cáncer en el colon

Fotografía de Jacqueline Littée, RN. Todos los derechos reservados. Se pueden detectar señales de cáncer en el colon durante una colonoscopia o una sigmoidoscopia.

Sigmoidoscopy: Step 2

A sigmoidoscopy helps your doctor look at the lower part of your large intestine (sigmoid colon). The test is done using a lighted viewing scope (sigmoidoscope). During a sigmoidoscopy, puffs of air sometimes are blown through the scope to open the colon so that your doctor can see more clearly. Your doctor will move…

Types of Colon Polyps

Photo credit: Jacqueline Littée, RN. Adapted with permission. All rights reserved. A polyp is a small growth of excess tissue that often grows on a stem or stalk on the inner surface of the large intestine (colon). Most polyps do not contain cancer cells. But some polyps can become cancerous over time.