Presentation
Twisting injury.
Patient Data
Age: 20
Gender: Male
From the case:
Knee joint effusion
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Small to moderate sized knee joint effusion. Borderline deepening of the lateral femoral notch. Edema seen within the deep aspect of Hoffa's fat pad. No fracture seen. Appearance suspicious for internal derangement, especially ACL tear, which could be assessed with MRI.
Case Discussion
Typical appearance of a knee joint effusion. This patient was found to have an ACL tear on MRI.
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