WHAT IS TOS?
CARLOS A. SELMONOSKY, M.D.
The throracic outlet syndrome is a group of symptoms arising not only from the upper extremity, but also from the chest, neck, shoulders and head.
The symptoms are produced by a positional, intermittent compression of the brachial plexus and/or subclavian artery vein and the vertebral artery.
The diagnosis is made easier by the physician's awareness and by use of the Selmonosky Diagnostic Triad during physical examination:
Weakness of the 5th finger
Elevation of the hand maneuver