Prolonged intubation may induce either a supraglottic or subglottic tissue hyperplasia.    From Wordnik.com.  [Bronchoscopy and Esophagoscopy A Manual of Peroral Endoscopy and Laryngeal Surgery] Reference

Historical data show, for example, that a tumor of the supraglottic larynx might generally spread to levels 2, 3 and 4.    From Wordnik.com.  [Health News from Medical News Today] Reference

11, Direct laryngoscopic view; postdiphtheric hypertrophic supraglottic stenosis.    From Wordnik.com.  [Bronchoscopy and Esophagoscopy A Manual of Peroral Endoscopy and Laryngeal Surgery] Reference