Fig. 6.

A 27-year-old female ballet dancer with acute on chronic lateral ankle pain. a Inversion recovery MRI axial image demonstrates absent anterior talofibular ligament fibers with fluid within the anterolateral gutter (arrow). Ultrasound image longitudinal to the anterior talofibular ligament (ATFL) anterior to the tip of the fibula, shows hypoechoic fluid (asterisk) in the lateral gutter indicative of ATFL tear without demonstrable intact overlying ATFL fibers with a suggestion of minimal hypoechoic discontinuity (arrow in a) at the fibular tip (F fibula).