In the labial scanning images, three major layers, including epithelium, lamina propria, and submucosa, can be identified. 在这些口腔黏膜的扫瞄结果中发现，我们可以观察到口腔黏膜中上皮层和固有层两层结构，部分能看到次黏膜的构造。
Nests of transitional epithelium grow downward into the lamina propria and a central cystic space forms. 移行上皮向下伸入到固有层并形成囊。
