GH1 and hypopituitarism: Typically, genetically-confirmed CPHD3 patients with homozygous LHX3 mutations present with hypopituitarism including deficiencies in the growth hormone (GH), thyroid stimulating hormone (TSH), prolactin (PRL), leutinizing hormone (LH), follicular stimulating hormone (FSH) and abnormal pituitary morphology.