A rare laryngeal tumor in a patient with thyroid papillary cancer: granular cell tumor ☆

摘要

Granular cell tumor (GCT), Abrikossoff's tumor, is a raretumor, especially that occurring in the larynx. It may sharesimilar appearance and symptoms with laryngeal granuloma, polyp, or nodule although they have different etiologyand features (Table 1). The diagnosis must be made byhistological examination. In the past decades, the originof GCT remained controversial but current mainstreamopinion regarded it as of neuroectodermal origin according to immunohistochemical staining.1 Here we presenteda patient with a history of papillary thyroid carcinomaunder regular follow-up who was diagnosed recently witha GCT of the larynx. The related literatures were alsoreviewed.