<unk>  is so rare that a reliable incidence cannot be established as of yet; fewer than 25 patients with the condition have been reported.
Beare–Stevenson cutis gyrata syndrome
Van Wyk and Grumbach syndrome
Cruveilhier–Baumgarten disease
Johnson–McMillin syndrome
Peters-plus syndrome
Bogart–Bacall syndrome
McGillivray syndrome
Vogt–Koyanagi–Harada disease