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Updated: Feb 13, 2026

A Novel Rescue Technique for Difficult Intubation and Difficult Ventilation
Published on: January 17, 2011
A case of unexpectedly difficult intubation caused by a large asymptomatic choanal polyp
Yoko Hori1, Kana Taniguchi1, Tadashi Okabe2
1Department of Anesthesiology, Nippon Medical School, Sendagi 1-1-5, Bunkyo-ku, Tokyo 113-8603 Japan.
Abstract:
We report a case of unexpectedly difficult intubation in a patient with a huge but asymptomatic choanal polyp. A 77-year-old man with invasive bladder cancer was scheduled for total cystectomy under general anesthesia. However, tracheal intubation with a Macintosh laryngoscope proved impossible due to obstruction by a large oropharyngeal tumor. Using a video laryngoscope, intubation was successfully achieved. Choanal polyps are not uncommon, but large choanal polyps reaching the oropharynx appear relatively rare. Anesthesia and airway management for large oropharyngeal tumor has not been sufficiently discussed.
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