Differential diagnosis of a vanishing brain space occupying lesion in a child

Figure 4 Cranial magnetic resonance imaging and magnetic resonance spectroscopy (MRS) brain (October 2014) showing (A, B) hyperintense lesion in the antero-medial region of the left temporal lobe in axial and coronal fluid attenuated inversion recovery images (white arrow); and (C) no restricted diffusion in axial diffusion weighted axial images; (D, E) long and short time echo MRS showing reduced values of Cho/Cr (long ET = 0. 05; short ET = 0.907), NAA/Cr (long ET = 1.31; short ET = 1.107) and NAA/Cho (long ET = 0.037; short ET = 0.38) ratios. NAA: N-acetyl-aspartate; Cr: Creatine; Cho: Choline.