CTICasesPost-traumatic hemarthrosis of the shoulder from anticoagulation
Imaging findings
CTA of the chest/shoulder demonstrates active contrast extravasation and high-density fluid pooling within the left shoulder joint capsule, representing active hemarthrosis (hemarthrosis similar to an arthrogram). There is also an underlying Hill-Sachs deformity from a recently reduced anterior shoulder dislocation.
Key takeaways
Anticoagulation (e.g., for DVT prophylaxis or treatment) in a patient with a recently reduced joint dislocation can lead to active hemarthrosis, which can be detected on contrast-enhanced CT as active extravasation within the joint capsule.
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