


Thoracic outlet syndrome symptoms can vary depending on the type. It's possible to have a mix of the three different types of thoracic outlet syndrome, with multiple parts of the thoracic outlet being compressed. It occurs when one of the arteries under the collarbone is compressed, resulting in bulging of the artery, also known as an aneurysm. This type of thoracic outlet syndrome occurs when one or more of the veins under the collarbone (clavicle) are compressed, resulting in blood clots.

The brachial plexus is a network of nerves that come from your spinal cord and control muscle movements and sensation in your shoulder, arm and hand. This most common type of thoracic outlet syndrome is characterized by compression of the brachial plexus. Neurogenic (neurologic) thoracic outlet syndrome.There are three general types of thoracic outlet syndrome:
