Avulsion fracture of the anterior process of the calcaneum. Thickening, hypoechogenicity of the lateral fibres of the dorsal talonavicular ligament. Normal echopattern of the medial fibres of the dorsal talonavicular ligament. Normal echopattern of the anterior-inferior tibiofibular ligament, anterior talofibular ligament, and calcaneofibular ligament. Minimal fluid in the ankle joint anterior recess.