Hypogonadotropic Hypogonadism 6 with or Without Anosmia, also known as kallmann syndrome 6, is related to hypogonadotropic hypogonadism 2 with or without anosmia and renal hypodysplasia/aplasia 1. An important gene associated with Hypogonadotropic Hypogonadism 6 with or Without Anosmia is FGF8 (Fibroblast Growth Factor 8), and among its related pathways/superpathways is EPHA-mediated growth cone collapse. Affiliated tissues include pituitary and testes, and related phenotypes are micropenis and hypogonadotropic hypogonadism