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Fig. 5A. —Macroglossia and glossoptosis in 18-year-old woman with Down
syndrome and persistent obstructive sleep apnea despite previous tonsillectomy
and adenoidectomy. Consecutive images from sagittal cine MRI sequence show
macroglossia with posterior aspect of tongue (arrows) encroaching on
hypopharynx. Interval decrease in caliber of hypopharynx with associated
obstruction occurs from A to B. Cine display of images showed
intermittent posterior motion of tongue, consistent with glossoptosis and
resulting in intermittent obstruction of hypopharynx.
