Middle aged man, right foot painful swelling while walking

X-ray: negative for fracture

POCUS findings: 
Calcaneus, Cuboid bone & Effusion 
(I alway use APP: Essential Anatomy for reference)

Echo-guided aspiration: In-plane approach

Aspiration result: blood 
(no more recurrence in ER)

Linear probe
Scan the most edematous area
In-plane needling
Use reference all the time for unfamiliar parts


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