Presentation
Right ankle inversion injury - few days ago.
Patient Data

Ankle joint anterior recess effusion. Fibular tip bony avulsion at the anterior talofibular ligament attachment site. Mild oedema of the anterior talofibular ligament. Normal anterior inferior tibiofibular and calcaneofibular ligaments.
The asymptomatic side anterior talofibular ligament was examined for comparison. It shows normal findings.
Case Discussion
A girl presented with lateral ankle pain and swelling after an inversion injury. An initial radiograph was negative for a fracture and the ankle was immobilised. Ultrasound was done to check lateral ankle ligaments and it shows anterior talofibular ligament bony avulsion from the fibula.