The omohyoideus myofascial pain syndrome: report of four patients.

AbstractPain in the shoulder, neck, arm, and hand, and in the scapular, supraclavicular, mandibular, and temporal regions may be caused by the omohyoideus myofascial pain syndrome. This may be primary, caused by vomiting or by other intense use of the muscle, or it may be secondary, occurring as a result of rheumatoid myositis, ankylosing spondylitis, nonankylosing rheumatoid spondylitis, gouty myositis, or other disorders. The syndrome can be successfully treated by gently injecting the inferior belly of the omohyoideus muscle and the secondary trigger points with a combination of medications that will break the pain/spasm cycle.