A member asked:

On pa & lat chest images, besides achalasia, what else could cause the gastric bubble to be missing/unseen?

A doctor has provided 1 answer
Dr. Hunter Handsfield answered

Specializes in Infectious Disease

Normal xray: Either presence or absence of a "gastric bubble" on a chest Xray is entirely normal. If swallowed gas is in the stomach, usually a "bubble" is seen. If not, no bubble. That's all. When a gastric bubble is seen, its size and location might give a clue about achalasia or other conditions. But absence of a bubble on any particular xray is meaningless.

Answered 1/5/2019

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