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Table 3 MRI features of NMO patients with EBLs

From: Clinical, radiographic characteristics and immunomodulating changes in neuromyelitis optica with extensive brain lesions

Radiologic features of the EBLs

n=16%

Acute lesions

16(100%)

   Tumefactive-like lesions

4(25%)

   ADEM-like lesions

6(37.5%)

   MS-like lesions

5(31.25%)

   PRES-like lesions

1(6.25%)

Margins

 

   Well defined

9(56.25%)

   Diffuse

7(43.75%)

Mass effect

 

   None

13(81.25%)

   Moderate

2(12.5%)

   Marked

1(6.25%)

Singnal of the EBLs

 

   T1W hypointense

16(100%)

   T2W hyperintense

16(100%)

   T2FLAIR hyperintense

16(100%)

Enhanced pattern

 

   Open ring

1(6.25%)

   None

15(93.75%)

Nonconventional Neuroimaging of EBLs (n=9)

 

   High intense signal in DWI

9(100%)

   ADC value increased

9(100%)

  1. One EBLs appeared with GDE, which manifested as open-ring like pattern and was observed in one patient (25%) with tumefacive-like lesions. Contrast enhancement was absent in ADEM-like lesions, MS-like lesion and PRES-like lesions.