Artículo original: Hayashi D, Roemer FW, D’Hooghe P, Guermazi A. Posterior ankle impingement in athletes: Pathogenesis, imaging features and differential diagnoses. Eur J Radiol Nov;84(11):2231-41. http://dx.doi.org/10.1016/j.ejrad.2015.07.017 Palabras clave: ankle impingement, posterior, os trigonum, Stieda’s process, posterior tibiotalar ligament, intermalleolar ligament.…