Magnetic resonance imaging of hypothenar hammer syndrome: Case series

Abstract

Hypothenar hammer syndrome is observed in some occupational groups or some athletes who use objects that can cause recurrent trauma to the superficial palmar region of their ulnar artery by the object they handle. The advance in imaging technologies and the increased use of these methods significantly raised the importance of MRI as well as MR angiography in evaluating wrist pathologies. Presenting these cases we aimed to discuss the MR imaging findings of hypothenar hammer syndrome. HHS is a treatable and preventable cause of the upper extremity digital ischemia. Radiologists should keep HHS in mind as a differential in the cases presenting with hand and finger symptoms, especially the ones in risk groups.