Esophagogastroduodenoscopy- procedure that visualizes the upper part of the gastrointestinal tract up to the duodenum.

• A. EGD
• B. Endoscopy
• C. Esophagoscopy
• D. Capsule endoscopy

Answer: (A)

The key idea is that esophagogastroduodenoscopy is the procedure that directly visualizes the upper GI tract—from the esophagus through the stomach to the duodenum. It’s commonly called an upper endoscopy. A flexible endoscope is passed through the mouth into the esophagus, stomach, and into the first part of the small intestine (the duodenum), allowing not only viewing but also taking biopsies and performing therapeutic maneuvers if needed.

Endoscopy in general just means looking inside with an endoscope, but not specific to the upper GI. Esophagoscopy targets only the esophagus. Capsule endoscopy uses a swallowable camera to image much of the GI tract, especially the small intestine, and it can’t biopsies or treat with instruments.