Does primary fibromyalgia exist?
Twenty-one of 25 consecutive primary fibromyalgia or fibrositis patients, identified during a 5-year period in a tertiary care day-ward for pain syndromes, were re-examined. Fifteen fulfilled criteria for fibromyalgia but unexpectedly, all cases had either psychiatric disturbance or thyroid dysfunction. Of the four patients not seen at follow-up, two had developed neurological diseases, another rh
