Laryngeal Plasmacytosis Responsive to Inhaled Budesonide

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Abstract
Mucous membrane plasmacytosis (MMP) is rare condition characterized by diffuse plasma cell infiltration of upper aero‐digestive tract mucosa. It results in epithelial hyperplasia that has a classic papillary appearance. We describe a case of MMP primarily affect laryngeal and oropharyngeal mucosa resulting in progressive airway obstruction. We highlight airway management and histopathology. The patient had near complete clinical response with inhaled budesonide, which has not yet been described as a treatment option in the literature. Laryngoscope, 133:70–72, 2023