Thabet M H, Kotob H
Department of Otolaryngology - Head and Neck Surgery, Faculty of Medicine, Alexandria University, Egypt.
J Laryngol Otol. 2001 Apr;115(4):293-7. doi: 10.1258/0022215011907488.
Lateral saccular cysts have been diagnosed in 17 patients. Definitive diagnosis was made by computed tomography (CT) that showed a fluid-filled cystic swelling of the saccule with no air fluid level in all patients. Fifty-three per cent of cysts were bulging through the thyrohyoid membrane. They were hugely enlarged in 18 per cent, moderately enlarged in 24 per cent, and slightly enlarged in 12 per cent of patients. One patient (six per cent) showed bilateral cysts. Lateral saccular cysts were primary in origin in 82 per cent of patients and secondary to prolonged intubation, hemilaryngectomy, and laryngoscleroma in 18 per cent of patients. Surgical excision via a lateral cervical approach was performed in eight patients, whereas endoscopic CO2 laser vestibulectomy was performed in nine patients. Endoscopic vestibulectomy with CO2 laser proved to be an efficient and safe procedure for excision of small and medium-sized cysts with a diameter equal to or less than 3 cm in the greatest dimension. The external approach appears more efficient than laser vestibulectomy in excision of huge cysts, as 22 per cent of patients undergoing laser surgery showed a recurrence.
17例患者被诊断为外侧囊状囊肿。所有患者均通过计算机断层扫描（CT）明确诊断，显示囊状有液性肿胀，无气液平面。53%的囊肿经甲状舌骨膜膨出。18%的囊肿极度增大，24%的囊肿中度增大，12%的患者囊肿轻度增大。1例患者（6%）表现为双侧囊肿。82%的患者外侧囊状囊肿为原发性，18%的患者继发于长期插管、半喉切除术和喉硬结病。8例患者采用外侧颈部入路进行手术切除，9例患者采用内镜下二氧化碳激光前庭切除术。对于最大直径等于或小于3 cm的中小型囊肿，内镜下二氧化碳激光前庭切除术被证明是一种有效且安全的切除方法。在切除巨大囊肿方面，外侧入路似乎比激光前庭切除术更有效，因为接受激光手术的患者中有22%出现复发。
