WCerebrotendineous xanthomatosis
WFabry disease
WFarber disease
WGaucher's disease
WGM2-gangliosidosis, AB variant
WJansky–Bielschowsky disease
WJordans' anomaly
WKrabbe disease
WLysosomal acid lipase deficiency
WMultiple sulfatase deficiency
WNeuronal ceroid lipofuscinosis
WNeutral lipid storage disease
WNiemann–Pick disease, type C
WPelizaeus–Merzbacher disease
WSandhoff disease
WSchindler disease
WSphingolipidoses
WTay–Sachs disease