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There are two ill-defined lesions involving the tibial and fibular growth plate, extending to the adjacent epiphysis and metaphysis through a cortical interruption with perifibular periosteal reaction. They elicit an iso-to low signal to the bone marrow on T1, high signal on T2 fat sat with moderate heterogeneous enhancement on postcontrast sequences. Adjacent tibial and fibular bone marrow oedema is noted as well as soft tissue oedema mainly of the lateral aspect of the ankle.