Hypophosphatasia, Childhood, also known as childhood hypophosphatasia, is related to hypophosphatasia and hypophosphatasia, adult, and has symptoms including seizures and waddling gait. An important gene associated with Hypophosphatasia, Childhood is ALPL (Alkaline Phosphatase, Biomineralization Associated), and among its related pathways/superpathways are Endochondral ossification with skeletal dysplasias and NAD metabolism. Affiliated tissues include bone and skin, and related phenotypes are seizure and frontal bossing