In most cases enlarged aditus destruction of lateral attic wall erosion of ossicular chain exposition of horizontal segment of facial nerve and tegmen of attic were found .

12例出现鼓窦扩大、上鼓室外侧壁破坏、听骨链侵蚀、 鼓室 天盖及面神经水平段暴露等骨质破坏。

Study on the optimization of extracting conditions for Flavonoids from mungbean tegmen

绿豆 皮中黄酮类物质浸提条件的优化研究

Inverse U form joint incision from inside and outside of the ear the auricle was overturned downwards so as to remove the tumors in the regions of the tegmen tympani and the fossa cranii media .

耳内外联合倒U形切口，将耳郭向下翻转，以处理上 鼓室 乳突 天盖、颅中窝底区病变。