- Homozygote for mutation c.1204 + 1G > A of the ARSA gene presents with a late-infantile form of metachromatic leukodystrophy and a rare MRI white matter lesion type. Ługowska, A., Szymańska, K., Kmiec, T., Tarczyńska, I., Czartoryska, B., Tylki-Szymańska, A., Jurkiewicz, E. J. Appl. Genet. (2005)