Epidemiology
A benign fibro-osseous lesion of children, almost always in the tibia or fibula. In young children it can stabilize with growth, so not every tibial deformity requires immediate surgery.
Basic features
It produces bowing or thickening of the front of the bone's cortex (outer layer) and must be distinguished from adamantinoma.
Usual treatment
It is often observed during growth; surgery is reserved for deformity, fracture, or a meaningful diagnostic doubt.
Outcomes and prognosis
Many lesions stabilize after skeletal maturity, though follow-up aims to detect progression or an alternative diagnosis.