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Keywords:

  • ultrasonography;
  • musculoskeletal system;
  • muscle tear

Abstract

We present an unusual case of a man with a nontraumatic tear of the flexor carpi radialis muscle after a regular swimming exercise, without known precipitation factors. The muscle tear was diagnosed by ultrasonography, which showed a cystic mass with increased peripheral vascularity, and was confirmed by magnetic resonance imaging. After conservative treatment, follow-up ultrasonography showed resolution of the hematoma. The patient was able to continue swimming without pain or limitation of function. © 2012 Wiley Periodicals, Inc. J Clin Ultrasound 2013