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A 15-year-old girl presented with a painful swelling of her left wrist. She had accidentally knocked her wrist on a banister at school 2 weeks previously and had noticed a swelling the following morning. A tender, 2 cm × 2 cm mass was palpable over the volar aspect of her wrist just proximal to the wrist crease (figure 1). Plain radiographs showed no acute bony injury; …
Contributors MK wrote case report. MB-W performed the ultrasound imaging and helped with image selection. JC and NT edited the article prior to submission.
Competing interests None.
Patient consent Obtained.
Provenance and peer review Not commissioned; internally peer reviewed.
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