Fig. 4
From: Peroneal nerve: Normal anatomy and pathologic findings on routine MRI of the knee
Tug lesion in the peroneus longus tendon. Plain radiography of the right knee, anteroposterior (a) and lateral view (b) demonstrate an extra ossification at the lateral side of the proximal fibula (arrows). This most likely corresponds to the origin of the peroneus longus tendon. It can cause tenderness over the peroneal tunnel and hypoesthesia and muscle weakness in the areas innervated by the peroneal nerve