Simplicity is the ultimate sophistication - Leonardo da Vinci

Dr Melas Nikolaos Vascular & Endovascular Surgeon MD, MSc, PhD
Phone 2310 232025, 6948599187
Military Doctor - Associate in 1st department of Surgery - Aristotle University of Thessaloniki, Greece - Associate in Interbalcan Medical Center

Thoracic outlet syndrome

Thoracic outlet syndrome (TOS) is a syndrome involving compression at the superior thoracic outlet wherein excess pressure placed on a neurovascular bundle passing between the anterior scalene and middle scalene muscles. It can affect one or more of the nerves that innervate the upper limb and/or blood vessels as they pass between the chest and upper extremity; specifically in the brachial plexus, the subclavian artery, and – rarely – the subclavian vein, which does not normally pass through the scalene hiatus.

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