Epicondylitis, also known as tennis elbow, is related to plantar fasciitis and mononeuropathy of the median nerve, mild. An important gene associated with Epicondylitis is PRR4 (Proline Rich 4), and among its related pathways/superpathways are Extracellular matrix organization and Non-integrin membrane-ECM interactions. The drugs Levobupivacaine and Lidocaine have been mentioned in the context of this disorder. Affiliated tissues include bone and liver, and related phenotypes are cardiovascular system and skeleton