Clinical and genetic analysis of nonketotic hyperglycinemia: A case report

Figure 1 Head magnetic resonance imaging of the nonketotic hyperglycinemia child at the age of 2 mo. A: The corpus callosum was small (arrow); B: On diffusion-weighted imaging, the upper corticospinal tract and bilateral paraventricular and parietal white matter showed a symmetrical high signal intensity (arrow); C: Apparent diffusion coefficient diagram showed a slightly lower signal (arrow).

Figure 2 In the abnormal electroencephalogram, persistent multifocal or extensive irregular sharp waves or sharp slow waves could be seen during the interattack, most of which were in a burst-inhibition state, and the inhibition period lasted 2–66 s.

Figure 3 Time frame of main clinical information. EEG: Electroencephalogram.