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Uptodate Reference Title
Schematic representation of saber sheath trachea
Schematic representation of saber sheath trachea
This deformity is characterized by narrowing of the intrathoracic trachea in the coronal plane (c) combined with widening in the sagittal plane (s). A ratio of coronal to sagittal diameter ≤0.6 is suggestive of this diagnosis.