Cerebral ALD (cALD) is the acute form of x-linked adrenoleukodystrophy, X-ALD. X-ALD is a peroxisomal disease caused by a genetic mutation on the ABCD1 gene. Because it is linked to the x-chromosome, it primarily affects males, though some females express symptoms later in life. The neurological disease is degenerative, progressively accumulating v chain fatty acids in the tissues. The disease results in severe inflammation in the brain and rapid cerebral demyelination, which will take patients lives within a few years.