Johnson neuroectodermal syndrome is characterized by alopecia, anosmia or hyposmia, conductive deafness with malformed ears and microtia and/or atresia of the external auditory canal, and hypogonadotropic hypogonadism. The disease is Johnson neuroectodermal syndrome (MONDO_0007837). Also known as: Johnson-McMillin syndrome, alopecia-anosmia-conductive hearing loss-hypogonadism syndrome, alopecia-anosmia-deafness-hypogonadism syndrome.