Diffuse Meningeal Melanocytosis, also known as diffuse melanocytosis, is related to hypomelanosis of ito and vulvar melanoma, and has symptoms including seizures An important gene associated with Diffuse Meningeal Melanocytosis is SASH1 (SAM And SH3 Domain Containing 1), and among its related pathways/superpathways are Signal Transduction and Development Angiotensin activation of ERK. Affiliated tissues include spinal cord and placenta, and related phenotypes are nervous system and growth/size/body region