Pins and Needles From Fingers to Toes: High-Resolution MRI of Peripheral Sensory Mononeuropathies

AJR Am J Roentgenol. 2017 Jan;208(1):W1-W10. doi: 10.2214/AJR.16.16377. Epub 2016 Nov 8.


Objective: The purpose of this article is to review advanced MRI techniques and describe the MRI findings of pure sensory mononeuropathy with relevant clinical and anatomic correlation.

Conclusion: Peripheral sensory mononeuropathy can be challenging to evaluate with MRI because of the small caliber of pure sensory nerves and the lack of changes in secondary muscular denervation. Advances in MRI afford the necessary signal-intensity contrast and resolution for adequate evaluation of many of these small peripheral nerves.

Keywords: MRI; neurography; peripheral nerve; sensory mononeuropathy.

Publication types

  • Review

MeSH terms

  • Humans
  • Image Enhancement / methods*
  • Magnetic Resonance Imaging / methods*
  • Mononeuropathies / diagnostic imaging*
  • Mononeuropathies / pathology
  • Peripheral Nerves / diagnostic imaging*
  • Peripheral Nerves / pathology
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Somatosensory Disorders / diagnostic imaging*
  • Somatosensory Disorders / pathology