TABLE 1:

MR imaging characteristics of tumefactive demyelinating lesions and glioma patients

Patient No.Age (y)/SexLesionLesion Size (cm)EnhancementEdemaMass EffectNecrosis/Cystic DegenerationLesion DelineationHeterogeneityAdditional Lesions
150/FTDL2.950%++++YesIllYesNo
246/FTDL1.730%−−NoWellNoYes
325/MTDL1.810%++YesIllYesYes
457/MTDL1.2<5%+−YesIllYesYes
541/FTDL2.8<5%++NoIllNoNo
649/FTDL2.130%++YesWellNoNo
751/MAA2.750%++++YesIntermediateYesYes
839/MAA1.490%++NoIllYesYes
944/MAO4.350%++++++YesIllYesNo
1028/MAA1.990%++NoIllNoYes
1138/MAMG1.490%+++NoIntermediateNoNo
1238/MAA1.710%++YesIllYesYes
1380/MAMG3.580%+++YesWellYesNo
1425/FAA4.850%++++YesIllYesNo
1560/MGBM2.380%++YesIllYesYes
1634/MGBM5.250%++++++YesIllYesYes
  • Note.—TDL indicates tumefactive demyelinating lesion; AA, anaplastic astrocytoma; AO, anaplastic oligodendroglioma; AMG, anaplastic mixed glioma; GBM, glioblastoma multiforme.