Focal stenosis on chest radiography and computed tomography

(A) Chest radiograph shows subtle tracheal abnormality (arrow) in a patient with a previous tracheostomy.

(B) Coronal reformation CT image demonstrates the extent and severity of the focal tracheal narrowing (arrows) and tracheal distortion.

CT: computed tomography.

Courtesy of Nestor L Muller, MD, PhD.

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