CTICasesInfected Tracheal Diverticulum
Imaging findings
CT chest shows a large, paratracheal gas-and-fluid-filled cavity communicating with the trachea (tracheal diverticulum) demonstrating thick wall enhancement, surrounding inflammatory stranding, and a new fluid-debris level, representing acute infection.
Key takeaways
Tracheal diverticula are usually benign, asymptomatic, incidental findings located at the right posterolateral aspect of the trachea. However, they can rarely accumulate mucus, become infected, and form a paratracheal abscess, presenting with neck pain, fever, and dysphagia, and requiring antibiotic therapy.
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