31-year-old female with right ankle anterolateral mass. Markers were placed over patient's palpable right ankle mass. Deep to these markers, there is a lobulated collection of fluid signal intensity arising from the sinus tarsus and extending into the soft tissues lateral to the talus between the anterior talofibular ligament and peroneus tertius. This collection measures up to 3 x 2 cm in greatest transverse dimension and up to 3 cm in greatest craniocaudal dimension. There is little if any enhancement of this collection on postcontrast images, and the findings are compatible with a ganglion.TENDONS: Tendons appear normal.LIGAMENTS: The visualized ligaments are intact, including the distal tibiofibular syndesmotic ligament and visualized components of the deltoid ligament.ARTICULAR SURFACES AND BONE: No significant abnormality noted. No osteochondral defects.ADDITIONAL
Ganglion as described above.