CTICasesMidesophageal Traction Diverticulum
Imaging findings
Chest CT demonstrates a small air-containing outpouching from the mid-esophagus adjacent to a calcified periesophageal lymph node, consistent with a traction diverticulum. Food debris is seen within the diverticulum lumen on the current study, with the prior CT showing the same diverticulum without content.
Key takeaways
Traction diverticula of the mid-esophagus arise from adhesion and traction of the esophageal wall by adjacent inflamed or calcified mediastinal lymph nodes (most commonly from prior granulomatous disease such as histoplasmosis or tuberculosis). Unlike pulsion diverticula, they are true diverticula containing all wall layers and are typically small and asymptomatic.
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