Good morning everyone. Today I'm here to talk to you about Thoracic Outlet Syndrome, or TOS. TOS is a condition that affects the nerves and blood vessels in the thoracic outlet, which is the area between your collarbone and first rib. It can cause pain in your neck, shoulder, arm, and hand. It can also cause numbness and tingling in your fingers. The most common cause of TOS is compression of the nerves or blood vessels in the thoracic outlet due to poor posture or repetitive motions. Other causes include trauma from an accident or injury, tumors, or an extra rib (called a cervical rib). The symptoms of TOS vary depending on which structures are compressed. Common symptoms include pain in the neck, shoulder, arm, and hand; numbness and tingling in the fingers; weakness in the arm; coldness in the arm; swelling of the arm; and discoloration of the skin on the affected side. Diagnosis of TOS usually involves a physical exam as well as imaging tests such as X-rays or MRI scans. Treatment options depend on what is causing your symptoms but may include physical therapy, medications to reduce inflammation or pain, lifestyle changes such as avoiding activities that aggravate your symptoms, and surgery if other treatments don’t work. Here's a diagram showing where TOS occurs: [insert link to diagram] And here's an image showing how poor posture can lead to TOS: [insert link to image] I hope this presentation has been helpful in understanding what Thoracic Outlet Syndrome is and how it can be treated. Thank you for listening!