52 year-old female with history of injury while shoveling snow. Evaluate for tendon rupture or fracture of left ankle. TENDONS: The tendons of the ankle are intact with no evidence of tendon rupture.LIGAMENTS: The visualized components of the deltoid ligament are intact. The ligaments of the sinus tarsus are intact.ARTICULAR SURFACES AND BONE: There is moderate edema within the head of the talus particularly in its medial aspect. In retrospect, the medial aspect of the talus appears demineralized on recent radiographs. We see no discrete fracture line. The remainder of the bone marrow signal intensity is unremarkable. ADDITIONAL
Edema within the head of the talus most pronounced along the medial aspect. The differential diagnosis includes a stress fracture/stress reaction (we see no discrete fracture line), a bony contusion or perhaps a small impaction fracture that is below the resolution of this study, or transient migratory edema. If there was an acute traumatic injury to this location, CT may be considered to evaluate for a fracture.