A Case of Inverted Papilloma in the False Vocal Fold Coexisting With Fungiform Papillomas of the True Vocal Fold

Inverted papilloma is a pathologic subtype of papilloma that mainly occurs in the sinonasal tract. Laryngeal inverted papilloma is extremely rare, and only a few cases have been reported so far. A 78-year-old male visited our clinic complaining of voice change that lasted five months. The rigid laryngoscopy showed multiple exophytic papillomatous masses in both vocal folds, and the left false vocal fold showed slight protruding appearance without a definite mass shadow. We performed laryngeal microsurgery with CO2 laser. While the masses in both true vocal folds were pathologically diagnosed as fungiform papillomas, the left false vocal fold was diagnosed as an inverted type. We report this very rare and unique case of laryngeal papilloma with a relevant literature review.