Question
Using the radiograph showing a foreign body in the esophagus, identify the sign associated with it.
| A. |
String sign
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| B. |
Double ring sign
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| C. |
Steeple sign
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| D. |
Thumb sign
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Show Answer
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Correct Answer » B
Explanation
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The double ring sign is associated with the radiographic appearance of a button battery lodged in the esophagus. Button batteries typically show a distinct double ring or halo effect on X-ray, which differentiates them from coins, which appear as a single density. The double ring can help differentiate between Coin and Battery. Presence of Battery indicates and immediate removal.
String sign : Typically associated with conditions like pyloric stenosis, where there is a narrowing of the pyloric canal, leading to a string-like appearance on imaging.
Steeple sign : This is typically seen in cases of croup, where subglottic tracheal narrowing produces a steeple-like shape on a frontal neck X-ray.
Thumb sign : Associated with epiglottitis, where the swollen epiglottis appears like a thumb on lateral neck X-rays.
