hypomyelinating leukodystrophy 13 (MONDO_0014813, a Monarch Disease Ontology entry) can be described as follows. Any leukodystrophy in which the cause of the disease is a mutation in the HIKESHI gene. Also known as: HIKESHI leukodystrophy, HLD13, hikeshi leukodystrophy, hypomyelinating leukodystrophy type 13, leukodystrophy caused by mutation in HIKESHI, leukodystrophy caused by mutation in hikeshi, leukodystrophy, hypomyelinating, 13, leukodystrophy, hypomyelinating, type 13.