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Barium Small Bowel Meal and Follow Through showing normal small and large bowel.
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Post discharge barium small bowel meal and follow through was performed which showed no abnormality (Fig. 1).
Axial view of CT scan showing free intraperitoneal gas anterior to the liver and stomach.
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On each of these occasions her inflammatory markers and other blood tests were within normal limits and either an erect chest X-ray or an abdominal CT scan (Fig. 2) showed free air in the intraperitoneal space.