Diagnostic imaging of an Achilles tendon rupture.

The patient was a 45-year-old man who was referred to a physical therapist with a chief complaint of posterior right ankle pain for the past 2 weeks. The physical therapist requested radiographs, which demonstrated obliteration of Kager's fat pad, a finding highly suspicious for an Achilles tendon rupture. Based upon history, physical examination, and radiographic findings, the physical therapist ordered magnetic resonance imaging which confirmed the diagnosis of Achilles tendon rupture.