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

在两侧各有1个空,称为"窦"。

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

目探讨窦恶性肌皮、血管内皮及浆细胞肉CT表现及临床意义。

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.

这时可以看窦开口，并为进一步窦口扩大术提供便利。