What are the chronic pain syndromes that involve muscle and fascia?
Myofascial pain syndrome and fibromyalgia are chronic pain syndromes that involve the muscle and soft tissues. Myofascial pain syndrome is regional in distribution, whereas fibromyalgia involves the entire body. These diagnoses may represent two points in a spectrum of disease, as subgroups of fibromyalgia have been identified on the basis of differing clinical findings and prognoses.
