Thoracic Outlet Syndrome Vascular thoracic outlet syndrome (VTO) occurs when blood vessels, specifically the subclavian artery or vein, are compressed in the thoracic outlet-a narrow space between the collarbone and the first rib. This compression can result from anatomical variations, such as an extra rib, or from trauma, posture, or repetitive movements. Over time, this can disrupt blood flow to the arm and hand, leading to a range of vascular symptoms. The most common symptoms of VTO include arm pain, swelling, and numbness, particularly in the hand or fingers. Patients often experience a feeling of heaviness or a cold sensation in the affected limb. In more severe cases, the arm may turn blue or purple due to restricted blood flow, and swelling may increase. These symptoms are often aggravated by lifting the arms or performing activities that require overhead movement. From an anatomical perspective, the thoracic outlet lies at the intersection of the neck, chest, and shoulder girdle, where key structures like nerves, arteries, and veins pass through. Understanding the underlying anatomy is essential for diagnosing VTO, and targeted treatments like physical therapy, posture correction, or in severe cases, surgical intervention, can help alleviate symptoms and restore proper blood flow. Kindly DM for credit or Removal 👈 Follow @world_of_medics #anatomy #medical #education #3d #biomechanics Did you like this information?