FIG 2. Severe PMD. T2-weighted MR images (T2); metabolic images of Cho, Cr and NAA; and selected spectra from the parietal white matter (WM) and parieto-occipital gray matter (GM). T2-weighted MR images show diffuse hyperintensity throughout the white matter, which also has markedly decreased NAA levels. Cho and Cr levels are also mildly elevated in the centrum semiovale. Gray matter spectra also show a lower ratio of NAA/Cho and NAA/Cr in the patient compared with that in the control subject.
A, Patient 1, aged 2 years 5 months.
B, Control subject 1, aged 1 year 9 months.