Table 2.

Medical disorders considered in the differential diagnosis of MPS as a general condition.

1. Fibromyalgia [80,86]

2. Musculoskeletal Diseases: - temporomandibular joint disorders, - occupational myalgias, - post-traumatic hyperirritability syndrome (PHS), - joint disfunction, - tendonitis and bursitis

3. Neurological Disorders: - trigeminal - glossopharyngeal/sphenopalatine neuralgia

4. Systemic Diseases: - rheumatoid arthritis, - gout, - psoriatic arthritis, - viral/bacterial/protozoan infections

5. Heterotopic Pain of Central Origin

6. Axis II-Type Personality Disorders - psychogenic pain, - painful behaviours

7. Drug Reactions