Identifying Extraluminal Air in Abdominal Imaging

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This guide covers the recognition of extraluminal air, detailing its definition and key locations such as intraperitoneal and retroperitoneal spaces. It highlights the importance of prompt identification for treatment decisions. Additionally, it discusses the detection of free and retroperitoneal air through specific signs and radiographic techniques, while addressing common pitfalls. Lastly, it explores bowel-wall and biliary air, examining pneumatosis patterns, their causes, and prognostic...