Presentation
2-year-old girl with a history of reflux.
Patient Data
Age: 2 years
Gender: Female
From the case:
pH probe
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pH probe with tip in distal oesophagus.
Normal mediastinal and cardiac contours. Lungs are clear.
Case Discussion
Probes measuring oesophageal pH as part of a gastrooesophageal reflux workup are not frequently seen on paediatric chest radiographs.
The tip of the probe should be seen in the distal oesophagus (above the gastrooesophageal junction).
It is important not to confuse it with a feeding tube.
The probe is connected to a monitor that records acid levels over a 24-hour period.
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