<unk>  (PLS), also known as palmoplantar keratoderma with periodontitis, is an autosomal recessive genetic disorder caused by a deficiency in cathepsin C.
Papillon–Lefèvre syndrome
Bogart–Bacall syndrome
Michels Caskey syndrome
Bonnet–Dechaume–Blanc syndrome
Jeavons syndrome
Peters-plus syndrome
Bowen–Conradi syndrome
Burnside–Butler syndrome