Article Text

Download PDFPDF
Woman with blue thumb
  1. So Sakamoto1,
  2. Yasuhiro Suyama2
  1. 1 Department of Emergency Medicine, Asahi General Hospital, Asahi, Japan
  2. 2 Division of Rheumatology, JR Tokyo Sogo Byoin, Tokyo, Japan
  1. Correspondence to Dr So Sakamoto, Emergency Medicine, Asahi General Hospital, Asahi 289-2511, Japan; sounet1980{at}

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.

Clinical introduction

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).

Figure 1

Bruising of the left thumb on admission.


What is …

View Full Text


  • Twitter @Sounet1980

  • 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.