Multiple Epiphyseal Dysplasia, also known as polyepiphyseal dysplasia, is related to epiphyseal dysplasia, multiple, 4 and epiphyseal dysplasia, multiple, 3, and has symptoms including hip pain, knee pain and arthralgia. An important gene associated with Multiple Epiphyseal Dysplasia is COMP (Cartilage Oligomeric Matrix Protein), and among its related pathways/superpathways are ERK Signaling and Signal Transduction. The drugs Valproic acid and Angiotensin II have been mentioned in the context of this disorder. Affiliated tissues include bone and bone marrow, and related phenotypes are Increased gamma-H2AX phosphorylation and homeostasis/metabolism