Can laryogoscopy and barium swallow test detect throat cancer?

Yes: One of the easiest ways of performing laryngoscopy is with a flexible scope which is a long narrow tube with lenses contained within which is past down the nostril after utilizing a topical anesthetic spray. One can easily visualize the nasopharynx, full larynx, oro pharynx and pass behind the larynx to the piriform sinuses on each side where even early pathology can be defined.