CTICasesGastric Ulcer Perforation
Imaging findings
A lateral chest radiograph shows a large volume of air under the diaphragm (pneumoperitoneum) with an air-fluid level and a continuous diaphragm sign. Abdominal CT confirms a large, perforated gastric ulcer.
Key takeaways
The lateral chest radiograph is a highly sensitive tool for detecting free intraperitoneal air.
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