: the fact or status of being a citizen of a particular place. : the qualities that a person is expected to have as a responsible member of a community. the fact or status of being a citizen of a particular place. : the qualities that a person is expected to have as a responsible member of a community.
What is thoracic outlet syndrome (TOS)? Thoracic outlet syndrome (TOS) is a condition caused by compression of nerves or blood vessels in the thoracic outlet, the area between the base of the neck and the armpit, including the front of the shoulders and chest. There are three types of TOS: Vascular. This can be a compression of the artery and vein.
Congenital Anomalies Associated with Thoracic Outlet Syndrome Anatomy, Symptoms, Diagnosis, and Treatment David B. Roos, MD, Denver, Colorado Personal experience gained from evaluating more than 2,300 patients for possible thoracic outlet syn- drome (TOS), and operating on 776 (204 bilaterally), has led to the firm conviction that patients who have ...