On a fiberoptic endoscopic evaluation of swallowing (FEES), the clinician observes white secretions pooling in the pyriform sinuses bilaterally at rest. This finding MOST suggests:
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A
Reduced pharyngeal sensation
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B
Impaired pharyngeal peristalsis with bilateral pharyngeal weakness
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C
Unilateral vagal nerve lesion
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D
Reduced epiglottic retroflexion