A case of a mucosal bridge of the vocal fold concurrent with polyp is reported. This is the second report of a mucosal bridge in Japan. The patient was a 62-year-old female who had complained of hoarseness for six months. We diagnosed her illness as polyp of the left vocal fold based on a fiberscopic observation of the larynx. However, an endolaryngeal microscopic observation revealed that her polyp was sessile and located on the middle of the mucosal bridge. We removed the polyp by cutting the

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... anterior and posterior end of the mucosal bridge, and a sulcus of the left vocal fold was recognized. Her hoarseness was not improved after the operation. Since a mucosal bridge is a minute string-like structure on the vocal fold, endolaryngeal microscopic observation is the only method to correctly diagnose it, and it is one of the laryngeal pathologies probably associated with sulcus vocalis.