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TABLE 3: 
Comparison of spectroscopic characteristics of tumefactive demyelinating lesions and gliomas
RegionTDL (n = 6)Glioma (n = 10)P Value
MedianRangeMedianRange
Enhancing RegionCho/Cr2.11.7–4.63.30.9–12.7.328
NAA/Cr1.50.7–1.90.70.6–1.2.014
Central RegionCho/Cr3.21.6–4.93.21.5–11.3.914
NAA/Cr2.41.0–3.20.90.5–1.6.008
Perilesional T2 RegionCho/Cr1.61.1–1.91.51.0–2.3.956
NAA/Cr1.50.3–2.91.30.9–2.1.478
Contralateral Normal BrainCho/Cr0.90.5–1.40.90.5–1.6.621
NAA/Cr1.81.6–3.01.61.1–3.6.383
  • Note.—Using the Wilcoxon rank-sum test and a Bonferroni correction for multiple comparisons, P < .0125 is considered statistically significant.