King Jackson, Mitchell Brian
Elson S. Floyd College of Medicine at 6760Washington State University, Spokane, WA, USA.
Columbia Surgical Associates, 49477Spokane ENT, Spokane, WA, USA.
Ear Nose Throat J. 2022 May;101(4):NP146-NP148. doi: 10.1177/0145561320956482. Epub 2020 Sep 13.
Branchial cleft anomalies are embryonic remnants of the branchial arches and are described as the second most common congenital neck mass. Depending on their extent, these anomalies are classified as a cyst, sinus, or fistula with branchial cysts being the most common. Branchial cysts deriving from the second branchial arch are by far the most common, accounting for approximately 95% of all cases. Complete second branch arch fistulas with both an internal and external opening are a rare variant of this anomaly, and even less have been well-documented on computed tomography (CT) imaging in the literature. We present here a case of a 20-year-old female with CT findings consistent with a complete second branchial arch fistula extending from the tonsillar fossa to the external lateral neck.
鳃裂畸形是鳃弓的胚胎残余物，被描述为第二常见的先天性颈部肿块。根据其范围，这些畸形可分为囊肿、窦道或瘘管，其中鳃裂囊肿最为常见。源自第二鳃弓的鳃裂囊肿是迄今为止最常见的，约占所有病例的95%。具有内口和外口的完全性第二鳃弓瘘管是这种畸形的罕见变体，在文献中，通过计算机断层扫描（CT）成像对其进行充分记录的病例更少。我们在此报告一例20岁女性患者，其CT表现符合从扁桃体窝延伸至颈外侧的完全性第二鳃弓瘘管。
