A case report of pedunculated laryngeal papilloma invaginated into the esophagus

Abstract

　We report herein on a case of laryngeal papilloma that had invaginated into the esophagus in a 66-year-old male. His tumor was incidentally discovered during a routine gastrointestinal endoscopy. The base of this tumor was located at the right arytenoid region and its head drooped into the esophagus. Although the head moved to epiglottic vallecula as seen on computed tomography, it was not visualized by magnetic resonance imaging due to the invagination of the tumor into the esophagus. It is also difficult to observe the tumor with a fiberoptic endoscope even with the Valsalva maneuver. Consequently, we tried laryngomicrosurgery and were able to remove the entire tumor which was approximately 38mm long. The head of the tumor was spherical in form and 5mm in diameter. While the head was pathologically diagnosed as a papilloma, the neck was composed of normal squamous epithelium. The extended length of the tumor neck was considered due to repeated swallowing.