|Healed||Cyst filled by formation of new bone with or without small static, radiolucent area(s) less than 1 cm in size.|
|Healing with defect||Static, radiolucent area(s) less than 50% of the diameter of the bone with enough cortical thickness to prevent fracture.|
|Persistent cyst||Radiolucent areas greater than 50% of diameter of the bone and with a thin cortical rim. No increase in cyst size.|
Cyst reappeared in a previously obliterated area|
or a residual radiolucent area has increased in size.