腮腺导管定位

腮腺导管的体表投影位于“耳垂至鼻翼鱼口角之间中点连线的中1/3处”。

有一个叫做“Magic finger”的手工定位方法：

One finger is applied at just below the zygomatic arch at the bony contact with the tip of the finger pushing on the zygomatic bone; the second finger is applied onto the anterior border of the masseter, perpendicular to the "zygomatic finger". Where the fingers cross, the parotid duct can be marked.

Sialendoscopy: The hands-on book一书中对这一方法配图如下：