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A previously healthy 86-year-old woman presented to the ED with sudden-onset pain and bruising in her left thumb, beginning several hours before. She denied any history of trauma or cold exposure. Her vital signs were stable. Physical examination revealed a subcutaneous haematoma and swelling with a normal sensation. D-dimer levels were not elevated (figure 1).
What is …
Contributors SS: conception, design, acquisition of data and patient management; YS: interpretation of data. Furthermore, both authors have participated in writing the manuscript. Both authors have read and approved the manuscript.
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.
Patient consent for publication Obtained.
Provenance and peer review Not commissioned; internally peer reviewed.