Ankle joint effusion
Citation, DOI, disclosures and case data
At the time the case was submitted for publication Servet Kahveci had no recorded disclosures.View Servet Kahveci's current disclosures
Twisted right ankle while playing football, local tenderness around medial malleolus.
Ankle joint effusion is seen as teardrop-shaped soft tissue density displacing the anterior fat pad on lateral view. Medial malleolus fracture is also seen on frontal view.
Ankle joint effusion is seen as teardrop-shaped soft tissue density displacing the anterior fat pad on zoomed lateral view.
Ankle joint effusion is seen anterior and posterior ankle recesses, because the ligaments restrict medial and lateral expansion of the joint capsule. Therefore lateral radiograph is the best projection for depicting ankle joint effusion. On lateral view, it is seen as teardrop-shaped soft tissue density at the anterior aspect of tibiotalar joint and it is called teardrop sign.