Helix Syndrome, also known as hypohidrosis, electrolyte imbalance, lacrimal gland dysfunction, ichthyosis, and xerostomia, is related to t-cell immunodeficiency, congenital alopecia, and nail dystrophy and question mark ears, isolated. An important gene associated with Helix Syndrome is CLDN10 (Claudin 10). Affiliated tissues include eye and kidney, and related phenotypes are hyperparathyroidism and alacrima