Which condition may NOT be diagnosed through a Barium swallow?

A Barium swallow is a diagnostic procedure primarily used to visualize the upper gastrointestinal tract, including the esophagus and stomach, by ingesting a barium solution followed by X-rays. This method is effective in identifying conditions related to the swallowing process and the general structure of the upper GI tract.

Cholecystitis, which refers to inflammation of the gallbladder, is not diagnosed through a Barium swallow. Instead, imaging techniques such as ultrasound or HIDA scans are more appropriate for assessing gallbladder conditions, as these tests can provide specific information about the gallbladder's anatomy and functionality.

In contrast, conditions like gastric ulcers, strictures of the sphincters, and even diverticulitis can be evaluated with a Barium swallow, as they involve the upper digestive tract or directly impact swallowing and the movement of food through the esophagus. However, diverticulitis is more commonly diagnosed through other imaging methods like CT scans, but since the question focuses specifically on what can or cannot be diagnosed through a Barium swallow, it is crucial to note that cholecystitis is not included among the conditions typically assessed with this procedure.