Oliver-McFarlane syndrome (OMCS; MIM #275400) is a rare autosomal recessive disorder characterized by congenital trichomegaly, severe chorioretinal dystrophy, and multiple pituitary hormone deficiencies-including growth hormone (GH), gonadotropins (luteinising hormone, [LH] and follicle-stimulating hormone [FSH]), and thyroid-stimulating hormone (TSH) (Lisbje et al., 2021). The gene discussed is GH1; the disease is trichomegaly.