GM2 gangliosidosis


GM2 gan·gli·o·si·do·sis

one of the hereditary metabolic disorders; several forms exist, including Tay-Sachs disease, Sandhoff disease, AB variant, and adult onset; characterized by accumulation of a specific metabolite, GM2 ganglioside, due to deficiency of hexosaminidase A or B, or GM2 activator factor.