<prompt> According to the Enneking system, not true regarding an active benign tumour is -IntracapsularMargin of reactive boneThick rim of reactive boneExtended curettage is treatment  <response>: 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. 