cultured skin fibroblasts and plasma from patients with the infantile , but not the adult , disorder show marked increases in the concentration of the long-chain fatty acid , hexacosanoic acid ( c26 ) , a feature once thought pathognomonic of adrenoleukodystrophy or zellweger 's syndrome .
C0162309
adrenoleukodystrophy
C0043459
zellweger 's syndrome