PMC3551692_01
A) Laryngoscopic examination shows a protruding parapharynx mass (white arrow), B) a left arytenoid mass (black arrow), C) the mass is covering the airway (black arrow).
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F1
The upper parapharynx wall of the left vocal cord was protruding toward the pharyngeal cavity (Figure 1).
Computed tomography with contrast shows a well-defined homogenous mass lesion involving the parapharyngeal space (white arrows) (A, B) and left arytenoids (white arrows) (C, D).
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F2
Computed tomography (CT) revealed a non-enhancing mass arising from the left side of the arytenoid cartilage and from the parapharynx and extending to the areas of the carotid artery (Figure 2).
A) Microscopic findings of the plexiform neurofibroma. The tumor comprises a tortuous mass of expanded nerve branches (hematoxylin and eosin stain, original magnification x40). B) Microscopic findings of the neurofibroma. Thin spindle cells were associated with thin, wavy collagen bundles. The cells and collagen bundles were loosely spaced in a clear or mucinous matrix (hematoxylin and eosin stain x200).
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F3
Postoperative laryngoscopic examination shows a fixed left vocal cord (A) and decreased arytenoid mass (B).
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F4
To date, two years postoperatively, the patient has had neither respiratory nor feeding difficulties, and her voice is nearly normal (Figure 4).