Bright rim sign in dysembryoplastic neuroepithelial tumors

The bright rim sign, also known as the hyperintense ring sign, has been described in dysembryoplastic neuroepithelial tumors (DNET) and is seen, as the name so aptly describes, as a rim of high signal around the DNET on FLAIR sequences.

The pathologic correlate of this sign is glioneural elements loosely packed at the margin of the tumor 1 .

Malformations of the central nervous system
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Article information

rID: 1017
Section: Signs
Tag: mri, refs, stub
Synonyms or Alternate Spellings:
  • Bright rim sign - DNET
  • Hyperintense rim sign in DNET
  • Hyperintense rim sign in dysembryoplastic neuroepithelial tumours

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