According to the Enneking system, not true regarding an active benign tumour is -
Enneking active stage of benign tumors is stage 2 in which tumor is actively growing and can cause symptoms of pathological fracture.
Radiograph shows well defined margins with a thin rim of reactive bone. Tumor may expand and thin the cortex.
Treatment usually consists of extended curettage, e.g. in ABC.
Intracapsular
Margin of reactive bone
Thick rim of reactive bone
Extended curettage is treatment