Nonspecific Granuloma of the Larynx

Nine cases of nonspecific granuloma of the larynx were examined and treated by the Department of Otolaryngology, University of Tokyo, between the years 1973 and 1976. All of the granuloma were confined to the unilateral posterior vocal cord; seven were sited at the right side and two were at the left. This site predominance was not in accord with most reported series saying the predominance of the left side. There was a significant preponderance of males over females (7 to 2). Age range was from 35 to 68 with a mean age of 46.7 and majority of cases appearing in the fourth decade. Hoarseness was the most common symptom occurring in six patients (67%), the next was sore throat. The patient waited an average of 13.6 months after symptoms began before visiting us. There seemed to be some etiologic factors other than the minor trauma based on “the hammer and the anvil” theory by Jackson. Any minor trauma causing the damage of mucosal surface might induce granuloma formation. Resection by cup forceps under direct laryngoscopy was mandatory. If recurred, electrocautery under microscope following it was the treatment of choice, and the effective results were obtained.