Müller J, Aydin H, Brunner F X
Klinik für Hals-, Nasen- und Ohrenkranke, Universität Würzburg.
Laryngorhinootologie. 1992 Jul;71(7):337-40. doi: 10.1055/s-2007-997309.
We report on the history, clinical findings, diagnostic examinations and the therapy of three patients with a left piriform sinus fistula, probably a fourth pharyngeal pouch. Our patients show recurrent inflammation and abscesses of the left lateral neck. X-ray (gastrografin swallow) showed the fistula originating from the floor of the left piriform sinus. CT-scan was helpful in the previously operated area, although the fistula could be shown by ultrasonic examination. Recurrent abscesses of the lateral neck may be caused by sinus piriform fistula. It is important to search for this rare malformation of the lateral neck.
我们报告了三例左侧梨状窦瘘患者的病史、临床发现、诊断检查及治疗情况，该瘘可能源自第四咽囊。我们的患者表现为左侧颈部外侧反复出现炎症和脓肿。X线检查（吞服泛影葡胺）显示瘘管起源于左侧梨状窦底部。CT扫描对先前手术区域有帮助，不过瘘管也可通过超声检查显示。颈部外侧反复出现脓肿可能由梨状窦瘘引起。查找这种罕见的颈部外侧畸形很重要。
