根尖囊肿

Features

  • 为含液体被内衬上皮的覆盖的囊腔。由之前存在的根尖肉芽肿发展而来。
  • 与根尖周肉芽肿有类似的影像学表现。
    • 圆形或椭圆形透明影像。
    • 边界清楚。
    • 长期病损有骨皮质包绕。
  • 不透明的边界与病患牙的骨硬板相连续。透明影像区可见患牙根尖。
  • 邻牙可移位但很少吸收。

Differential diagnosis

Cases

Different cases of radicular cyst.

A case of radicular cyst: before and after the extraction of the associated tooth.

A radicular cyst associated with the 22.

CBCT images. Different cases

Large odontogenic cyst arising from the right upper first molar. Perforation of the palatal cortex. Remodeling and perforation of the floor of the sinus and mucosal thickening.