Palmoplantar Keratoderma, Punctate Type Ib, also known as keratoderma, palmoplantar, punctate type ib, is related to palmoplantar keratoderma, punctate type ia. An important gene associated with Palmoplantar Keratoderma, Punctate Type Ib is PPKP1B (Keratoderma, Palmoplantar, Punctate Type IB). Related phenotype is punctate palmoplantar hyperkeratosis.