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Cupola sign
Medical condition / From Wikipedia, the free encyclopedia
The cupola sign is seen on a supine chest or abdominal radiograph in the presence of pneumoperitoneum.
Quick Facts Differential diagnosis ...
Cupola sign | |
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Cupola sign | |
Differential diagnosis | pneumoperitoneum |
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It refers to dependent air that rises within the abdominal cavity of the supine patient to accumulate underneath the central tendon of the diaphragm in the midline. It is seen as lucency overlying the lower thoracic vertebral bodies. The superior border is well defined, but the inferior margin is not.