CLINICAL INFORMATION AND HISTORY: Inversion injury. No fracture seen in X-ray, but effusion seen laterally. Not formally reported at the time of the scan. TECHNIQUE: Imaging of the soft tissues of the anterolateral aspect of the left ankle including the anterior inferior tibiofibular ligament (AITFL), anterior talofibular ligament (ATFL), calcaneofibular ligament (CFL), peroneus longus tendon (PLT), peroneus brevis tendon (PBT).   Also the soft tissues of the medial aspect of the ankle including the deltoid ligament, tibialis posterior tendon (TP), flexor digitorum longus tendon, flexor hallucis longus tendon. Comparison views of the contralateral right ankle performed. FINDINGS: The ATFL appears ruptured. No intact fibres are identified. The lateral retinaculum also appears thickened and there is associated increased vascularity. There is fluid around the peroneal tendons and within the sheath but no hypervascularity. The CFL appears intact. No other soft tissue abnormality i...