喉頭枠組み手術時の縫合糸により形成された声門下肉芽腫切除後の頸部膿瘍

Cervical Abscess after Surgery for Subglottic Granuloma due to Suture Thread Used at Thyroplasty with Arytenoid Adduction

片側性声帯麻痺に対する治療として，声帯に直接手術侵襲を加えず喉頭枠組み軟骨の形態や位置をかえることにより，間接的に声帯の緊張や長さ，位置をかえる喉頭枠組み手術がある．われわれは，喉頭枠組み手術後に遅発性に発生した声門下縫合糸肉芽腫の1例を経験したので報告する．

A 83-year-old man underwent thyroplasty with arytenoid adduction for right recurrent laryngeal nerve palsy 1 year ago. He had been suffering from hemosputum and cough for last 2 months, and was referred to our hospital for medical examination. Laryngoscopy and neck computed tomography showed subglottic nodule. No evidence of malignancy was noted by a transbronchial biopsy of subglottic nodule. Since subglottic nodule grew rapidly during 2 months observation period, subglottic nodule resection was performed by bronchoscope. Histopathologic examination revealed that the tumor was suture granuloma with no evidence of malignancy. Cervical abscess as a complication of subglottic suture granuloma resection was occurred, because of suture material for arytenoid adduction and the injury of mucous membrane for removing the granuloma with the fenestration of thyroid cartilage for thyroplasty.