Summary of imaging and clinical findings in patients with abnormally decreased T2 signal

Findings
Demographics
 Patients29
 Sex (male)19 (65.5%)
 Age (yr)49 (range, 18–85)
Clinical information
 Associated seizures22 (75.9%)
 Extrinsic compressive lesions14 (48.3%)
Imaging findings
 Laterality
  Bilateral7 (24.1%)
  Unilateral22 (75.9%)
 Multiple lobes involved21 (72.4%)
 Frequency of involved lobes
  Frontal19 (65.5%)
  Parietal17 (58.6%)
  Temporal16 (55.2%)
  Occipital14 (48.3%)
EEG findings
 Availability19 (65.5%)
 Laterality
  Unilateral12/12 Cases with MRI T2 changes unilateral
  Bilateral7/7 Cases with MRI T2 changes bilateral
Follow-up imaging
 Availability9 (31%)
 Changes resolved6 (66.6%)
  Associated with compressive lesion4/6
 Nonresolved/gliosis3 (33.3%)
  Associated with  compressive lesion1/3