Arvydas D. Vanagunas MD FACP FACG


Magnetic Resonance Cholangiogram

A magnetic resonance cholangiogram (MRC) is a test that can help doctors look for problems in the belly. The image is done from outside the body. No instruments are inserted in the body. Doctors can use MRC to find gallstones before surgery to remove the gallbladder (laparoscopic cholecystectomy). But the test is most…

Colonoscopy: Anatomy of the Colon

The colon is also known as the large intestine. It starts with the cecum, which attaches to the small intestine, and ends with the anus. Other parts of the colon include the ascending colon, the transverse colon, the descending colon, the sigmoid colon, and the rectum.

Sigmoidoscopy

Sigmoidoscopy is the inspection of the lower part of the large intestine (colon) using a lighted viewing scope (sigmoidoscope). A doctor can also remove small growths and collect tissue samples (biopsy) through a sigmoidoscope. Sigmoidoscopy is most commonly used to screen for colon cancer. About half of all colon…