Glomus tumor MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Soujanya Thummathati, MBBS [2]

Overview

MRI is helpful in the diagnosis of glomus tumor. Findings on MRI suggestive of glomus tumor includes hyperintense signal on T2 and PD (proton-density) weighted imaging.

MRI

• MRI may be helpful in the diagnosis of glomus tumor. Findings on MRI suggestive of glomus tumor include:
  • T1 images
    • Slightly hypointense or hyperintense
  • T2 images
    • Hyperintense

• Depending on the histologic subtype, diagnosis of glomus tumor may be more difficult and the signal can sometimes appear similar to the nail bed.
  • The T1 image appears much more intense following gadolinium injection, allowing the lesion to be visualized more clearly.
• The technique can be particularly useful for the detection of early lesions, which are very small (even 2 mm lesions) and difficult to diagnose either by physical examination or using other imaging techniques.
• It can also be useful for assessment of patients with recurrence or incomplete resolution of symptoms following surgery.

MRI component	Findings
T1	Hypointense or hyperintense
T2	Hyperintense
T1 with contrast	Contrast enhancement (usually uniform) due to vascularity

References

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