孔融四岁，知道让梨。上让哥哥，下让弟弟。大家都很称赞他。 苂。
Kong Rong four years old, know let pear. Up to let my brother, let the younger brother. We all praise him.
结果造影显示颌下腺腺体呈倒梨状位于下颁角后下方，主导管细长由腺体前缘发出，水平向前走行。
ResultsSialograms showed a long, horizontal main excretory duct and a pear-shaped gland located infero-posterior to the angle of the mandible.
通过X线片测量梨状隐窝下极与椎体相对位置。
The relationship of position between the inferior piriform recess and vertebral was measured through X-ray film.
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