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Table 2 The morphologic characteristics of the tracheal lesion treated

From: Flexible bronchoscopic management of benign tracheal stenosis: long term follow-up of 115 patients

LOCATION TYPE LENGTH DEGREE OF STENOSIS
Subglottic (81) Web-like (97) < 1 cm (12) < 30% (4)
Upper trachea (30) Complex (18) 1-3 cm (99) 30-50% (57)
Mid and lower trachea (4)   > 3 cm (4) 50-99%(56)