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

在鼻腔的两侧各有1个空腔,称为"上颌"。

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

目的探讨上颌肌上、血管内浆细胞肉的CT表现临床意义。

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.

这时可以看到上颌的开口，并为进一步的上颌口扩大术提供便利。