The thoracic outlet is the ring formed by the top ribs, just below the collarbone. Thoracic outlet syndrome (TOS) occurs when nerves or blood vessels are compressed by the rib, collarbone or neck muscles at the top of the outlet.
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What does TOS mean anatomy?
Thoracic outlet syndrome (TOS) is a term that refers to three related syndromes involving compression of the nerves, arteries, and veins in the lower neck and upper chest area. This compression causes pain in the arm, shoulder, and neck.
What is a TOS pain pattern?
Symptoms of thoracic outlet syndrome may include: Pain, numbness, and tingling in the pinky and ring fingers, and the inner forearm. Pain and tingling in the neck and shoulders (carrying something heavy may make the pain worse)
What is TOS in cardiology?
Thoracic outlet syndrome (TOS) describes a group of disorders involving compression of the nerves or blood vessels between the muscles of the neck and shoulder or between the first rib and collarbone (clavicle). This area is known as the thoracic outlet.
What is TOS surgery?
Surgery to treat thoracic outlet syndrome, called thoracic outlet decompression, may be done using several different approaches. These approaches involve removing a muscle and a part of the first rib to relieve compression. You also may need surgery to repair damaged blood vessels.
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The thoracic outlet is located in the lower part of the neck, just above and behind the clavicle. It extends underneath the clavicle to the area just in ...
TOS may occur after hyperextension injuries to the neck. The hyperextension tears some of the anterior and middle scalene muscle fibers, which form scar tissue ...
Jan 31, 2023 · The vascular thoracic outlet syndrome (TOS) is characterized by subclavian artery (SCA) and/or subclavian vein (SCV) compression. It is ...
In summary, TOS involves compression of nerves and blood vessels in the thoracic outlet, leading to various symptoms. It's complex and controversial, with ...
“Thoracic outlet” is an anatomical term that refers to the opening between your neck and chest. This opening (also called your thoracic inlet or superior ...
Two principal areas of nerve compression in neurogenic TOS are the scalene triangle and the subpectoralis space. The scalene triangle is bound by the ...
Jul 8, 2023 · These anatomic tunnels normally conduct the three vital structures from the neck and chest to each arm. TOS occurs when narrowing of one or more ...
Basic Anatomy of thoracic outlet syndrome. There are three types of TOS: Arterial, which involves compression of the subclavian artery as it exits the chest ...