Case contributed by Ian Bickle


Abdominal pain and distention.

Patient Data

Age: 70 years
Gender: Female

Rigler's sign and the continuous diaphragm sign of pneumoperitoneum.

Distended large bowel.

Case Discussion

At surgery, an obstructing sigmoid cancer was identified as the cause of large bowel obstruction and pneumoperitoneum.

This is a very clear example of Rigler's sign.

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