MRI of the Digital Nerves of the Hand: Anatomy and Spectrum of Pathology

Publication date: Available online 6 March 2017
Source:Current Problems in Diagnostic Radiology
Author(s): Charles H. Mitchell, Laura M. Fayad, Shivani Ahlawat
Digital nerves are intrinsic to the sensory and motor function of the hand. These nerves represent the terminal ramifications of the ulnar, median and radial nerves and are located distal to the carpal tunnel and Guyon′s canal. With magnetic resonance imaging (MRI), traumatic and non-traumatic abnormalities of the digital nerves can be shown with high contrast as well as high spatial resolution. Digital nerve abnormalities are most commonly post-traumatic in nature; however, infection, inflammatory, vascular malformations and neoplasms can rarely occur. MRI is playing an increasing role in the assessment of peripheral nerve injury throughout the body, and in the hand, can accurately identify the extent and character of digital nerve abnormalities prior to operative intervention.



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