Ankle: Nonossifying Fibroma (NOF) on Plain Films
FindingsThe plain films demonstrate a well-defined cortically based lesion arising from the posterolateral cortex of the distal tibia.The lesion has non-aggressive features and a narrow zone of transition.
DiscussionNOFs are a very common benign tumor of bone in children and adolescents. They are asymptomatic unless associated with pathologic fracture. They resolve with skeletal maturity.



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