Neurofibroma CT

Neurofibroma Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sara Mohsin, M.D.[2] Shanshan Cen, M.D. [3]

Overview

CT scan may be helpful in the diagnosis of neurofibroma.

CT Scan

• CT scan may be helpful in the diagnosis of neurofibroma.
• Findings on CT scan suggestive of neurofibroma include:
  • Well-defined, round or oval hypodense mass
  • Has an attenuation value of 20–25 HU on nonenhanced scans and 30–50 HU after contrast material administration
  • Best imaging features for diagnosis is a fusiform mass, which represents the nerve entering and exiting the tumor
  • Low attenuation is attributed to:
    • High lipid or water content within the mucinous matrix
    • Entrapment of perineural adipose tissue
    • Cystic degeneration (less often)

References

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