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Added by Christian Veillette , last edited by Christian Veillette on Sep 06, 2008  (view change)
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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.
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