Fig 1. A 1.3-year-old boy (patient 1) left with spasticity and decerebrate posture. A, coronal T2-weighted imaging (4000 ms/90 ms, repetition time [TR]/echo time [TE]) shows symmetrical hyperintensity in the thalami (arrows), the centrum semiovale (arrowheads), and the brain stem, including the midbrain (double arrowheads) and the pons (double arrows). Note swelling of the thalami.

B, Postcontrast coronal T1-weighted imaging (630 ms/20 ms, TR/TE) shows irregular ringlike enhancement in the thalami (arrows).