TY - JOUR T1 - Vacuolating Megalencephalic Leukoencephalopathy with Mild Clinical Course Validated by Diffusion Tensor Imaging and MR Spectroscopy JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1041 LP - 1045 VL - 25 IS - 6 AU - Yi-Fang Tu AU - Cheng-Yu Chen AU - Chao-Ching Huang AU - Chang-Shin Lee Y1 - 2004/06/01 UR - http://www.ajnr.org/content/25/6/1041.abstract N2 - Summary: We report a case of presumed vacuolating megalencephalic leukoencephalopathy (VML) in a 5-year-old boy that was diagnosed when the patient was 34 months old. The patient presented clinically with megalencephaly and delayed onset of slowly progressive neurologic dysfunction. Serial MR imaging and biochemical analysis were performed to differentiate VML from other disease entities with megalencephaly and leukoencephalopathy of infantile onset. Information obtained with diffusion tensor MR imaging revealed nearly intact white matter anisotropy and vectors in parietal and posterior temporal lobes in which hyperintense abnormality was shown on conventional T2-weighted images, and proton MR spectra showed a significant decrease in 𝓃-acetylaspartate-creatine + phosphocreatine ratio. ER -