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The enhancing septal/alveal wedge: A septal sign of intraaxial mass

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Summary

Wedge-like thickening and enhancement of the septum pellucidum or alveus of hippocampus nearly always signifies direct invasion of the septum (or alveus) by an intraaxial mass. Benign, extraaxial juxtaseptal masses rarely exhibit such change.

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Russell, E.J., Naidich, T.P. The enhancing septal/alveal wedge: A septal sign of intraaxial mass. Neuroradiology 23, 33–40 (1982). https://doi.org/10.1007/BF00399703

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Key words

  • Brain neoplasms, diagnosis
  • Computed tomography
  • Corpus callosum, neoplasm
  • Fornix
  • Hippocampus
  • Meninges, neoplasm
  • Septum pellucidum