Figure 4From: An unusual cause of ankle pain: fracture of a talocalcaneal coalition as a differential diagnosis in an acute ankle sprain: a case report and literature review (A) lateral radiograph of a left ankle showing the talar beak (arrow), (B) lateral radiograph of the right ankle obtained of our patient with C sign (arrows) extending from the talar dome through the coalition component of the posterior talocalcaneal joint to the sustentaculum tali. Back to article page