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A 26-year-old man presented to the emergency department with a 4-day history of a painful swollen mass on the left arm. He had received primary wound closure from a regional hospital after a penetrating injury from a utility knife. Physical examination revealed a tender, soft mass over volar side of left wrist. Point-of-care ultrasound was performed (figure 1A,B).
What is the most likely diagnosis?
Left forearm haematoma.
Left forearm abscess.
Left forearm radial artery pseudoaneurysm.
Left forearm tumour.
The ultrasound shows the characteristic findings …
Contributors P-YT, Y-CL and W-JL provided equal contribution to this submission.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.
Provenance and peer review Not commissioned; internally peer reviewed.
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