“…8 The differential diagnoses include ankle sprain, an osteochondral lesion, posterior pseudomeniscus or plica in the posterior ankle, Achilles rupture, Achilles tendinitis, posterior tibial tendinitis, retrocalcaneal bursitis, Haglund deformity, peroneal subluxation, tarsal tunnel syndrome, talofibular arthritis, mortise diastasis, calcaneal fracture, ganglion, soleus syndrome, problems of medial posterior tubercle of the talus, Cedell fracture of the medial tubercle of the posterior process of the talus, tarsal coalition, Sever disease, a retrocalcaneal spur, and arthritis. 5,9 By comparing clinical, laboratory and radiographic findings, exclusion of the enumerated lesions may be made without difficulty.…”