hypomyelinating leukodystrophy 4 (MONDO_0012824) can be described as follows. Any leukodystrophy in which the cause of the disease is a mutation in the HSPD1 gene. Also known as: HLD4, HSPD1 leukodystrophy, MitCHAP60 disease, Pelizaeus-Merzbacher-like disease due to HSPD1 mutation, hypomyelinating leukodystrophy type 4, leukodystrophy caused by mutation in HSPD1, leukodystrophy, hypomyelinating, type 4, mitochondrial HSP60 chaperonopathy.