Porokeratosis 1, Multiple Types, also known as porokeratosis of mibelli, is related to porokeratosis and linear porokeratosis. An important gene associated with Porokeratosis 1, Multiple Types is PMVK (Phosphomevalonate Kinase), and among its related pathways/superpathways are Metabolism of steroids and superpathway of cholesterol biosynthesis. Affiliated tissues include skin and bone marrow, and related phenotypes are hyperkeratosis and aplasia/hypoplasia of the skin