Postcricoid inflammatory myofibroblastic tumor (inflammatory pseudotumor) in a 10-year-old girl

Direct laryngoscopy revealed a thickened postcricoid hypopharynx with shortened aryepiglottic folds and a curled epiglottis resulting in significant narrowing of the supraglottic airway.

Post-contrast axial CT scan of the neck showing a 1.5cm×1.2cm mass in the postcricoid region of the hypopharynx exhihibiting intense, heterogeneous contrast enhancement.

(A and B) Fascicular growth pattern of bland spindle and stellate-shaped cells with an admixed prominent lymphoplasmactyic infiltrate (hematoxylin and eosin stain, 200× and 400×); (C) immunohistochemical staining revealing diffuse cytoplasmic reactivity for smooth muscle actin within the spindle cells (200×).

Direct laryngoscopy 3 months following the initial resection revealed a widely patent supraglottic airway and no evidence of recurrence.