Thoracic outlet syndrome (TOS) is a general term used to describe three conditions which occurs in the thoracic outlet, an area formed by the top ribs and the collarbone. The syndrome occurs when a …

May 20, 2026 · Thoracic outlet syndrome (TOS) is a group of conditions caused by pressure on blood vessels or nerves in the area between the neck and shoulder. This space is known as the thoracic …

Thoracic outlet syndrome (TOS) occurs when there’s compression of nerves or blood vessels in your lower neck and upper chest. Symptoms include pain, tingling and numbness in your arms and hands.

The term ‘thoracic outlet syndrome’ (TOS) refers to the compression of the neurovascular structures, primarily the brachial plexus, subclavian artery, and the subclavian vein, as they exit through the …

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TOS affects mainly the upper limbs, with signs and symptoms manifesting in the shoulders, neck, arms and hands. Pain can be present on an intermittent or permanent basis. It can be sharp/stabbing, …

Aug 15, 2025 · TOS is caused by compression on nerves and/or blood vessels, although the underlying causes of these compressions can vary. A common area in which nerves are compressed is …

Dec 17, 2024 · Thoracic outlet syndrome (TOS) is when you have pain, swelling, or other symptoms from compression in your thoracic outlet -- the opening between your lower neck and upper chest. It …

Thoracic outlet syndrome (TOS) causes symptoms such as hand weakness, numb fingers, and finger, hand, arm, or shoulder pain. Learn about TOS diagnosis, causes, and treatment.

Arterial thoracic outlet syndrome (artery-related) is a very rare form of TOS that occurs when the subclavian artery is narrowed and damaged. This leads to the formation of blood clots or an aneurysm.