Frontiers in Endcrinology review. Distinguishing between self limited delayed puberty and Kallmann syndrome / congenital hypogonadism. Panel testing for the molecular genetic diagnosis of Congenital Hypogonadotropic Hypogonadism - A clinical perspective.Genetic screening panel available in the UK for screening of 14 genes linked to Kallmann syndrome and Hypogonadotropic Hypogonadism.