sequestrum

CT could clearly demonstrate the extent of bone involved,the destruction of cortex,periosteal reaction,change of soft tissue and sequestrum.

CT对病变范围、皮质、骨膜、软组织改变、死骨及邻近结构受累与否清楚。

Jaw is reached inside oral cavity facial skin forms most fistula hole, discharge pus for a long time, sometimes but eduction small sequestrum.

口腔内及颌面部皮形成多数瘘孔，长期排脓，有排出小死骨片。