There is one cavea on either side of the nose, which is called "maxillary sinus".

在鼻腔两侧各有1个空腔,称为"上"。

ObjectiveTo discuss the CT manifestation and clinical significance of rare neoplasm in maxillary sinus, includingmalignant myoepithelioma, angioendothelioma, sarcoma of plasmacyte.

探讨上恶性肌上皮、血管内皮及浆细胞肉CT及临床意义。

The uncinate fragment is then grasped and removed as one piece.This should bring into view the opening of the maxillary sinus and facilitate subsequent maxillary sinus meatotomy.

这时可以看到上开口，并为进一步上口扩大术提供便利。