Any Leydig cell hypoplasia in which the cause of the disease is a mutation in the LHCGR gene. The disease is Monarch Disease Ontology term MONDO_0009384 (Leydig cell hypoplasia, type 1). Also known as: LHCGR Leydig cell hypoplasia, Leydig cell hypoplasia caused by mutation in LHCGR, leydig cell hypoplasia with hypergonadotropic hypogonadism, leydig cell hypoplasia with pseudohermaphroditism.