Bleeding Disorder, Platelet-Type, 18, also known as platelet-type bleeding disorder 18, is related to leukocyte adhesion deficiency, type i and thrombasthenia. An important gene associated with Bleeding Disorder, Platelet-Type, 18 is RASGRP2 (RAS Guanyl Releasing Protein 2), and among its related pathways/superpathways are Signal Transduction and Response to elevated platelet cytosolic Ca2+. Affiliated tissues include bone marrow and bone, and related phenotypes are epistaxis and bruising susceptibility