Direct observation of the tissue lining the anterior margins of the colon would best be accomplished with which of the following diagnostic imaging studies?

Question

Quizplus · Accepted Answer

Fiberoptic exam, such as a colonoscopy or sigmoidoscopy, allows direct visualization of the tissue lining the colon and is the best option for examining the anterior margins of the colon. Computed tomography and positron emission tomography are imaging studies that do not provide direct visualization of tissue. A barium enema is an imaging study that can show the shape and contour of the colon, but it does not provide direct visualization of the tissue.

Direct Observation of the Tissue Lining the Anterior Margins of the Colon