Pneumoperitoneum

Case contributed by Alexandra Stanislavsky
Diagnosis certain

Presentation

Elderly lady with an acute abdomen

Patient Data

Age: 75
Gender: Female
x-ray

Select images from the plain film series demonstrate Rigler sign and the appearance of free gas on erect chest and abdominal cross-table lateral views.

Case Discussion

The patient had pneumoperitoneum secondary to large bowel obstruction (subsequent CT not shown).

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