Genetic testing--x linked dominant pattern associated with various neoplasm nnn (eg. basal cell carcinoma)
Bazex–Dupré–Christol syndrome
Zadik–Barak–Levin syndrome
Neu–Laxova syndrome
Cronkhite–Canada syndrome
Nicolau–Balus syndrome
Wallis–Zieff–Goldblatt syndrome
Banki syndrome
Zamzam–Sheriff–Phillips syndrome