Shugar M A, Healy G B
Head Neck Surg. 1980 Sep-Oct;3(1):72-5. doi: 10.1002/hed.2890030113.
The fourth branchial cleft anomaly has long been postulated. A case in which a lower neck sinus tract extended under the clavicle near the subclavian vessels is presented. The distinguishing features of bronchogenic and branchogenic anomalies are discussed. It appears that unless a complication (e.g., abscess, inflammatory process) of the fourth branchial cleft sinus tract occurs within the mediastinum, mandating full exploration, the complete form of the anomaly may continue to remain undocumented.
第四鳃裂畸形长期以来一直被推测存在。本文报告了一例下颈部窦道在锁骨下靠近锁骨下血管处延伸的病例。文中讨论了支气管源性和鳃源性畸形的鉴别特征。似乎除非第四鳃裂窦道在纵隔内发生并发症（如脓肿、炎症过程），从而需要进行全面探查，否则这种畸形的完整形式可能仍未被记录在案。
