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Bilateral idiopathic hypertrophy of the first dorsal interosseous muscles in a 43-year-old man
  1. K Boelmans1,
  2. F Fischbach2,
  3. U Mirastschijski3,
  4. S Vielhaber4
  1. 1
    Department of Neurology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
  2. 2
    Department of Radiology and Nuclear Medicine, Otto-von-Guericke-University, Magdeburg, Germany
  3. 3
    Department of Plastic, Reconstructive and Hand Surgery, Otto-von-Guericke-University, Magdeburg, Germany
  4. 4
    Department of Neurology II, Otto-von-Guericke-University, Magdeburg, Germany
  1. Dr K Boelmans, Department of Neurology, University Hospital Hamburg-Eppendorf Martinistrasse 52, D-20246 Hamburg, Germany; k.boelmans{at}

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A 43-year-old fireman presented with a soft swelling in his right and left hands at the dorsal aspect of the first web space. The man reported that the swelling had progressed gradually over the past 18 months (fig 1). He denied any trauma to the hands or stereotype activities. He had no pain or any other symptoms, and used his hands without …

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  • Competing interests: None declared.

  • Patient consent: Obtained.