Endoscopy – A bronchoscope, gastroscope, and proctoscope are available. The bronchoscope permits a non-invasive look inside the respiratory system. The gastroscope permits a non-invasive look inside the upper gastrointestinal tract, permits biopsies of the stomach and upper intestine, and often aids in non-surgical removal of stomach foreign bodies. The proctoscope aids in the diagnosis of colon and rectal disease.