Ankle teardrop sign is one of the radiological signs of an ankle joint effusion. It represents the presence of fluid in the inferior part of the anterior compartment of ankle.
This sign is appreciated on a lateral radiograph of ankle which is seen as a teardrop-shaped opacity that extends anteriorly from the tibiotalar joint and continues along the neck of talus.
There are several other described teardrop signs, please see the disambiguation article here.
- 1. Dodge JP. The ankle teardrop sign. Radiology. 2004;231 (3): 789-90. doi:10.1148/radiol.2313021096 - Pubmed citation
- 2. Towbin R, Dunbar JS, Towbin J et-al. Teardrop sign: plain film recognition of ankle effusion. AJR Am J Roentgenol. 1980;134 (5): 985-90. doi:10.2214/ajr.134.5.985 - Pubmed citation