Location

Ankle

Diagnosis

Ankle effusion

Discussion

One normal ankle radiograph (A), and one abnormal ankle radiograph (B) revealing a moderate effusion. The teardrop-shaped density seen extending anteriorly from the ankle joint along the neck of the talus has been referred to as the “teardrop sign” of ankle effusion. This is a useful sign in the diagnosis of ankle joint effusion, and may alert the diagnostician to possible underlying pathology.

Reference

Towbin R, Dunbar JS, Towbin J et al.: Teardrop sign: Plain film recognition of ankle effusion. AJR Am J Roentgenol 1980, 134:985-990.

Figures

Click thumbnail for larger image

Attachments:


ankleeffusion.jpg (image/jpeg)


anklenormallat.jpg (image/jpeg)