Cupola sign

Pneumoperitoneum on chest X-ray.

Cupola sign is a radiological sign that is helpful in pneumoperitoneum. [1]

In cupola sign, straight x-ray abdomen in erect posture reveals gas under diaphragm when there is relatively large amount of air in the peritoneal cavity.


  1. Bhat, Sriram; M, Sriram Bhat (30 December 2012). SRB's Manual of Surgery. JP Medical Ltd. p. 1280. ISBN 978-93-5025-944-3.
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