Thoracic outlet syndrome. Thoracic outlet syndrome is a form of vascular disease.
Thoracic outlet syndrome. (compressed). Learn about thoracic outlet syndrome (TOS), a group of disorders that happen when nerves or blood vessels are compressed in your neck and chest. They target the scalene muscles- three pairs of muscles on the side of the neck- cervical spine, pectoral, and trapezius muscles. Thoracic outlet syndromes are a group of disorders caused by pressure on nerves, arteries, or large veins as they pass between the neck and chest. This area — called the thoracic outlet — is behind and below the collarbone opposite the first rib. So when this irritation or compression happens, it causes different kinds of symptoms that can be nerve in nature or vessel-related in nature and that's what caused the thoracic outlet syndrome phenomenon. People with ATOS may have tingling, numbness or pain in one arm or hand. At UPMC, we take a team approach to quickly and correctly diagnosing TOS. Risk Factors Thoracic outlet syndrome usually affects people between 20 and 40. [MUSIC PLAYING] What does thoracic outlet syndrome (TOS What is thoracic outlet syndrome (TOS)? Thoracic outlet syndrome (TOS) is a condition in which the nerves or blood vessels are squeezed tightly in a small space behind the collarbone (clavicle). , Chair, Division of Vascular Surgery Mayo Clinic in Florida: Absolutely. What are the types of thoracic outlet syndrome (TOS)? Sam Farres, M. This comprehensive article will delve deep into Thoracic Outlet Syndrome Thoracic outlet syndrome can be a result of an extra rib (cervical rib), an accessory (extra) muscle, or scar tissue from trauma, fracture of the clavicle (collarbone), or repetitive use that reduces the space for the vessels and nerves. The thoracic outlet is a specific anatomical region with three distinct … The Johns Hopkins Thoracic Outlet Syndrome Clinic diagnoses and treats all forms of thoracic outlet syndrome (TOS), whether it is neurogenic (nerve compression) or vascular (blood vessel compression). And the thoracic outlet is the space between the collar bone and the first rib. Learn more about TOS treatment at Ohio State. Introduction 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 thoracic outlet also known as the cervicothoracobrachial region. This space is called the thoracic outlet. This article will discuss physical therapy assessment, goals, exercises, and outcomes for thoracic outlet syndrome. Apr 4, 2024 · Fortunately, in many cases, the symptoms of thoracic outlet syndrome can be addressed with physical therapy. When pressure is put on veins, the arms swell, and Oct 1, 2024 · Thoracic outlet syndrome (TOS) is a disorder that may compress the blood vessels or nerves in the upper chest region. TOS was first reported by Rogers in 1949 and more precisely characterized by Rob and Standeven in 1958. If left untreated, the pain can Thoracic outlet syndrome (TOS) causes pain, numbness and impaired circulation. Thoracic outlet syndrome happens when bones or muscles in the upper chest press on nerves or blood vessels. Thoracic Outlet Syndrome (TOS) refers to an ill-defined assortment of disorders originating in the passageway between the neck and chest – called the thoracic outlet. Learn the causes, symptoms and treatment options at Banner Health. When pressure is put on arteries, the arms become pale and cool. Read more about how we identify the types and symptoms of TOS and deliver personalized treatments for your condition. If an injury, abnormal bone or muscle, or another factor reduces Thoracic outlet syndrome (TOS) causes pain, numbness or swelling in the neck, shoulder or arm. Thoracic Outlet Syndrome is a group of disorders that occur when blood vessels or nerves are compressed. Typically, physical treatment for thoracic outlet syndrome usually involves physical therapy and pain relief measures, but sometimes surgery is needed. The knowledge of its clinical presentation with specific symptoms, as well as proper imaging examinations, Feb 18, 2018 · The infamous thoracic outlet syndrome. [1] Wilbourne suggests five different types of TOS; a venous variant, arterial, a traumatic, a true Thoracic outlet syndrome (TOS) causes symptoms such as hand weakness, numb fingers, and finger, hand, arm, or shoulder pain. The compression leads to pain, tingling or numbness in the neck or arm. , Chair, Division of Vascular Surgery Mayo Clinic in Florida: Very broadly speaking, it can be divided into neurogenic thoracic outlet, if the nerves are compressed or irritated. Treatment may be nonoperative or include surgical decompression or a vascular procedure depending on the specific etiology. Thoracic Outlet Syndrome Thoracic outlet syndrome (TOS) is an uncommon medical condition that happens when the nerves and blood vessels between the neck and shoulder are pinched and compressed between the collarbone and top rib. Thoracic outlet syndrome Background Symptoms from compression of neurovascular bundle at thoracic outlet Neuro complications most common (95%), then venous compression (3%), and then arterial (1%) Scalene triangle most often involved area: borders are anterior scalene, middle scalene and first rib Clinical Features Thoracic outlet syndrome (TOS) is a group of symptoms caused by the compression of neurovascular structures of the superior thoracic outlet. TOS may cause swelling, discoloration, numbness, or tingling of the patient's arm, limiting Sep 11, 2023 · Thoracic Outlet Syndrome (TOS) is a medical condition that affects the nerves and blood vessels in the thoracic outlet, a narrow space between your collarbone (clavicle) and your first rib. May 10, 2023 · Thoracic outlet syndrome is not the name of a single entity, but rather a collective title for a variety of conditions attributed to compression of these neurovascular structures as they traverse the thoracic outlet. TOS can cause pain, numbness, or weakness in your shoulder, arm, or hand. What is thoracic outlet syndrome? Thoracic outlet syndrome (TOS) is a term used to describe a group of disorders that occur when there is compression, injury, or irritation of the nerves and/or blood vessels (arteries and veins) in the lower neck and upper chest area. Includes: possible causes, signs and symptoms, standard treatment options and means of care and support. OVERVIEW Thoracic outlet syndromes (AKA, cervical rib, scalenus anticus, costoclavicular, hyperabduction and pectoralis minor syndrome) are a group of syndromes primarily associated with arm symptoms. Thoracic outlet syndrome is a set of symptoms affecting the shoulder, arm or hand due to pressure on the nerves and blood vessels in the upper part of the chest. Common Symptoms Pain, numbness, tingling or weakness in the shoulder, arm or hand Swelling or discoloration of the arm or hand Weakened pulse in the Thoracic outlet syndrome (TOS) refers to an uncommon but potentially disabling group of conditions characterized by symptoms that result from compression of neurovascular structures crossing through the anatomic space of the thoracic outlet. Find out how a cervical rib, whiplash, bodybuilding or other factors can increase your risk of developing this syndrome. This can cause pain in the neck and shoulders and numbness in fingers. The diagnosis of thoracic outlet syndrome was once debated in the world of vascular surgery. The compression of these structures results in a range of symptoms, including neck, shoulder, arm, and hand pain; numbness and tingling sensations; and arm and hand weakness Thoracic outlet syndrome (TOS) is a group of conditions that occur when you have compressed nerves or blood vessels in the thoracic outlet. This is the rarest type. Thoracic outlet syndrome is a form of vascular disease. Thoracic outlet syndrome is a constellation of signs and symptoms resulting from compression of either a nerve or a blood vessel in the neck, just as it exits the spinal cord. It can compress arteries, veins, and nerves in the region. This weakens the blood circulation in the neck, shoulder and arm. About 1 in 10 people who have a cervical rib develop thoracic outlet syndrome. TOS is considered to be one of modern medicine’s most difficult issues, because of the complex and variable nature of its symptoms. This is the narrow space between your collarbone (clavicle) and your first rib. Oct 5, 2025 · Care guide for Thoracic Outlet Syndrome. Find out the types, symptoms, causes, diagnosis and treatment options for TOS. This article offers a comprehensive guide to TOS, its causes, symptoms, diagnosis, and treatment Thoracic outlet syndrome is a collection of symptoms related to a narrowing of the space between the first rib and the collarbone. Neurogenic TOS (nTOS): Patients have associated occipital headache, tension and tightness in the shoulders and interscapular area Dec 23, 2024 · Thoracic outlet syndrome (TOS) is caused by the compression of nerves or blood vessels in the thoracic outlet, the narrow space between the collarbone and the first rib. Mar 11, 2021 · Thoracic outlet syndrome refers to a group of conditions that develop when the blood vessels or nerves in the thoracic outlet become compressed. There are several possible sites of compression. Thoracic outlet syndrome results from compression of those neurovascular structures within the thoracic outlet. Thoracic outlet syndrome usually affects young, active people. [1] The neurogenic type is the most common and presents with pain, weakness, paraesthesia, and Jun 4, 2024 · Can I treat thoracic outlet syndrome (TOS) with physical therapy and sports medicine? Sam Farres, M. Learn about Thoracic Outlet Syndrome, its symptoms, causes, and effective management options for better health and mobility. This syndrome can cause uncomfortable and sometimes painful symptoms, significantly impacting an individual’s quality of life. Our specialists offer a range of treatments to help relieve your symptoms. Thoracic outlet syndrome affects people of all ages and genders. Thoracic outlet syndrome (TOS) involves symptoms caused by compression of neurovascular structures in the thoracic outlet region, located above the first rib and behind the clavicle. Patients commonly complain of arm pain. Thoracic outlet syndrome (TOS) is a condition where the nerves or blood vessels in the thoracic outlet (the space between the collarbone and first rib) are compressed, causing various symptoms. What are the long-term side effects of thoracic outlet syndrome (TOS) treatment? Dr. What is thoracic outlet syndrome? Thoracic outlet syndrome (TOS) refers to a group of symptoms that affect your neck, arm and hand. The signs and symptoms that arise can be divided into neurological (nTOS, most common), venous (vTOS), and arterial (aTOS). Vascular Thoracic outlet syndrome (VTOS) is categorized as disorders of the upper extremity, which are caused by compression of the brachial plexus and subclavian artery or vein by bony, soft tissue or muscular anomalies as they emerge from the thoracic outlet. Nov 15, 2017 · Thoracic outlet syndrome (TOS) is a general term that refers to symptoms and findings which follow from compression of the principal neurovascular structures that course across and through the spaces of the thoracic outlet (brachial plexus nerves, subclavian vein, or subclavian artery). This space is known as the thoracic outlet. Today, it is more understood and surprisingly less infrequent than once thought. This area is called the thoracic outlet. Thoracic outlet syndrome is a group of disorders that occur when the brachial plexus nerves, subclavian vein, and/or subclavian artery are irritated or damaged due to compression (squeezing) in this area. Learn about its symptoms, diagnosis, and treatment. Thoracic outlet syndrome is a variety of symptoms that happen from a narrowing of your thoracic outlet. Arterial thoracic outlet syndrome (AOTS) is a compressed artery between your ribs and collarbone. Both nonsurgical and surgical treatment Abstract Thoracic outlet syndrome (TOS) involves inconsistent symptoms, presenting a challenge for medical providers to diagnose and treat. Identification of thoracic outlet syndrome is complex and a thorough clinical Thoracic outlet syndrome (TOS) is a rare condition (1-3 per 100,000) caused by neurovascular compression at the thoracic outlet and presents with arm pain and swelling, arm fatigue, paresthesias, weakness, and discoloration of the hand. While diagnosis can be tricky, there are non-invasive treatment options. The thoracic outlet is shaped like a triangle and is found at both sides of the body What is Thoracic Outlet Syndrome? Thoracic Outlet Syndrome (TOS) refers to disorders that take place when injury, irritation, or compression affect the nerves and/or blood vessels (veins and arteries) in the area of the lower neck and upper chest area. When pressure is put on the nerves, pain and pins-and-needles sensations (paresthesias) occur in the hand, neck, shoulder, and arm. Thoracic outlet syndrome can become worse due weight lifting, obesity, pregnancy, chest tumors, or an extra rib near the base of the neck. The condition is common among athletes who participate in sports that require repetitive motions of Thoracic outlet syndrome (TOS) is an uncommon medical condition that happens when the nerves and blood vessels between the neck and shoulder are pinched and compressed between the collarbone and top rib. Thoracic outlet syndrome is when nerves or vessels are compressed in the area between your collarbone and rib. This is the space between your collarbone and your first rib. Apr 10, 2023 · Thoracic outlet syndrome (TOS) is a nonspecific diagnosis representing many conditions that involve the compression of the neurovascular structures that pass through the thoracic outlet. Find a specialized vascular surgeon for your thoracic outlet syndrome care at UNC Hospitals in Chapel Hill, North Carolina. upper extremity. Thoracic outlet syndrome, or TOS, is a group of disorders that occur when nerves between the collar bone and first rib (thoracic outlet) are compressed. Thoracic outlet syndrome (TOS) is a group of rare conditions involving compression of the brachial plexus, a group of nerves and blood vessels that serves the arm and hand. Learn more about this condition, including symptoms and treatment The thoracic outlet is a small area between your collarbone, first rib and vertebra. Presenting symptoms and predisposing conditions should be elucidated in the preop evaluation. Jun 21, 2023 · Thoracic outlet syndrome often causes pain and discomfort in your arm and hand. Learn more. Symptoms of thoracic outlet syndrome can include the following: Thoracic outlet syndrome is a group of disorders that occur when the blood vessels or nerves in the space between the collarbone and the first rib become compressed. Thoracic outlet syndrome can cause neck and shoulder pain, numbness and tingling of the fingers and a weak grip. Thoracic outlet syndrome is defined as a compression injury to the brachial plexus, subclavian artery or vein, or axillary artery or vein occurring between the cervical spine and upper extremity. Thoracic outlet syndrome (TOS) is a group of conditions characterized by compression of the nerves, arteries or veins in this space. In fact, physical therapy and sports medicine can be used effectively in treating particularly neurogenic thoracic outlet syndrome. It is caused by trauma, repetitive movements, exertion, anatomic narrowing of the muscles or congenital conditions. It gets its name from the Thoracic Outlet that is located between the lower neck and upper chest and this collection of blood vessels and Thoracic outlet syndrome, a group of diverse disorders, is a collection of symptoms in the shoulder and upper extremity area that results in pain, numbness, and tingling. Thoracic Outlet Syndrome: Symptoms and Treatment The Thoracic Outlet Syndrome Program at Massachusetts General Hospital provides expert comprehensive evaluation and treatment for patients of all ages with all forms of thoracic outlet syndrome, including neurogenic, venous, and arterial. The condition can result from injury, disease, or a problem you had from birth. The thoracic outlet is the triangular space between your collarbone, first rib, and a muscle in your back called the middle scalene. Nov 27, 2019 · Thoracic outlet syndrome occurs when something compresses the nerves, arteries, or veins that pass through the thoracic outlet. It affects thousands of people each year and often presents with a variety of symptoms that can significantly impact daily life. About TOS Thoracic outlet syndrome (TOS) is a rare disease with a spectrum of symptoms, typically severe pain, resulting from compression or irritation of arteries, nerves, or veins. Vascular TOS usually occurs in young patients and athletes who are involved in repetitive overhead motion, such as swimming or Apr 2, 2025 · Exercises for Thoracic Outlet Syndrome Pain Relief Thoracic outlet syndrome exercises address the three compression sites to relieve pressure and, in turn, pain. This can happen in one or more of the brachial plexus (nerves), subclavian vein, or subclavian artery. Thoracic outlet syndrome is named for the space (the thoracic outlet) between your lower neck and upper chest where this Patient History Thoracic outlet syndrome (TOS) has been classified as neurogenic (95% of cases), venous (3- 5%), or arterial (1%). This narrowing can cause problems with the nerves, arteries, or veins, which pass through that space. Sep 11, 2025 · Thoracic outlet syndrome (TOS) is an unusual cause of shoulder and arm pain and tingling. Read about the types and treatment. Thoracic outlet syndrome (TOS) is composed of three types: neurogenic, Thoracic outlet syndrome occurs when nerves or blood vessels become compressed in the area between the clavicle (collarbone) and first rib. Oct 4, 2022 · Often, thoracic outlet syndrome can result in pain, numbness, and weakness of the muscles in the upper extremities. Arterial thoracic outlet syndrome - compression of the subclavian artery. TOS can be classified as neurogenic, arterial, or venous based … Nonspecific-Type Thoracic Outlet Syndrome Also known as disputed thoracic outlet syndrome, this condition is characterized by chronic (long-lasting) pain in the chest area that tends to worsen with activity – but the cause of pain can’t be determined. Jun 4, 2021 · Thoracic outlet syndrome is a neurovascular disorder resulting from compression of the brachial plexus and/or subclavian vessels in the interval between the neck and axilla. Learn about TOS diagnosis, causes, and treatment. Our experts study your medical history, run tests to rule out similar conditions, and examine you Vascular Thoracic outlet syndrome (VTOS) is categorized as disorders of the upper extremity, which are caused by compression of the brachial plexus and subclavian artery or vein by bony, soft tissue or muscular anomalies as they emerge from the thoracic outlet. It has potential to cause numerous types and areas of pain, such as neuralgia in the arms, chest, between the shoulder blades and in the back (figure 1), dizziness, brain fog, migraine, headaches, a feeling of being May 9, 2024 · Thoracic outlet syndrome refers to a group of clinical syndromes caused by congenital or acquired compression of the brachial plexus or subclavian vessels as they pass through the superior thoracic aperture 11. . The thoracic outlet is the narrow space between Neurogenic thoracic outlet syndrome – compression of nerves on the brachial plexus, the nerves that go across your upper chest. Neurovascular entrapment is thought to be caused by compression of the brachial plexus, subclavian artery and/or vein at some combination of the following sites: within the interscalene triangle Thoracic outlet syndrome is a variety of symptoms that happen from a narrowing of your thoracic outlet—the space between your collarbone and your first rib. Jun 4, 2024 · Thoracic outlet syndrome (TOS) is a group of conditions in which there's pressure on blood vessels or nerves in the area between the neck and shoulder. Thoracic outlet syndrome (TOS) is a condition in which there is compression of the nerves, arteries, or veins in the superior thoracic aperture, the passageway from the lower neck to the armpit, also known as the thoracic outlet. Farres: Possible side effect of treatment can vary based on the treatment employed and the underlying cause or applying the wrong treatment or less effective treatment for an individual. Symptoms may include pain, swelling, numbness, skin discoloration, and blood clots in the neck, shoulder, arm, or hand, depending on which structures are involved Thoracic outlet syndrome is a variety of symptoms that happen from a narrowing of your thoracic outlet—the space between your collarbone and your first rib. Apr 14, 2025 · About 1 in 200 people are born with an extra rib called a cervical rib. Learn about the causes, symptoms and treatments of thoracic outlet syndrome, a condition that occurs when nerves or blood vessels are compressed by the rib, collarbone or neck muscles. TOS occurs when a bone or muscle narrows nerves and blood vessels in this passageway, preventing them from working properly. It usually occurs in the setting of hyperextension injuries Thoracic outlet syndrome (TOS) affects nerves and blood vessels in your thoracic outlet — a passageway located just below your collarbone. What is thoracic outlet syndrome? Thoracic outlet syndrome (TOS) is an uncommon condi-tion that can happen when the nerves, artery, or vein to the arm is compressed by one or more structures that make up the thoracic outlet (Figure 1). The thoracic outlet is a narrow space in the body located behind the collarbone and in front of the first rib. Venous thoracic outlet syndrome - compression of the subclavian vein. The other type is vascular thoracic outlet, if the Thoracic outlet syndrome is a term used for several different conditions that can occur when nerves and/or blood vessels in the thoracic outlet are compressed or irritated. The clinical presentation is highly variable, and no reproducible study exists to confirm the diagnosis; instead, the diagnosis is based on a physician’s judgment after a meticulous history and physical examination. The thoracic outlet is bordered by the scalene muscles, first rib, and clavicle. Even poor posture—drooping shoulders or holding your head forward—can lead to thoracic outlet syndrome if the space around your arteries, nerves, or veins tightens. What is Thoracic Outlet Syndrome? Thoracic Outlet Syndrome (TOS) is a group of symptoms that occur when blood vessels or nerves in the space between your collarbone and your first rib (thoracic outlet) are squeezed. These disorders arise from the crowded nature of the thoracic outlet, which is an expressway for the throat, trachea, major blood vessels and many nerves. Identification of thoracic outlet syndrome is complex and a thorough clinical examination in addition to appropriate clinical tes … Jul 11, 2025 · Learn about Thoracic Outlet Syndrome (TOS) including its causes, symptoms, diagnosis, and treatment options at the Vein Institute at The Cardiovascular Care Group. Thoracic outlet syndrome refers to pressure against the blood vessels or nerves in your thoracic outlet area. Thoracic Outlet Syndrome (TOS) is caused by a recurring compression of the nerves of the brachial plexus and/or subclavian blood vessels between the first rib, collarbone and scalene muscles. Clinical presentation Clinical pr The Yale Thoracic Outlet Syndrome Program provides dedicated evaluation and treatment of patients with Thoracic Outlet Syndrome (TOS), a condition in which the subclavian vein, artery, or brachial plexus is compressed as it travels from the chest to the arm between the collarbone and the first rib. It remains a complex and controversial condition in musculoskeletal medicine and rehabilitation. Most people affected are between 20-50 years old. Learn more about the two types of thoracic outlet syndrome. DESCRIPTION Thoracic outlet syndrome is characterized by pain and weakness from compression of nerves and less com-monly from compression of arteries and veins in the neck, which may affect the shoulders, arms, and hands. In addition to the primary site of compression, there can be a second site of compression at the pectoralis minor region. Then, we'll create a treatment plan that's right for you. Thoracic outlet syndrome (TOS) is a term used for a group of disorders caused by the compression of nerves, veins, or arteries as they pass through a tight passageway between the collarbone and topmost rib to the arms. We would like to show you a description here but the site won’t allow us. TOS is named for the space between your lower neck and upper chest where this grouping of nerves and Thoracic outlet syndrome, a group of diverse disorders, is a collection of symptoms in the shoulder and upper extremity area that results in pain, numbness, and tingling. [1] There are three main types: neurogenic, venous, and arterial. The thoracic outlet is a narrow space located between your collarbone and first rib. Oct 24, 2024 · Thoracic outlet syndrome (TOS) refers to a constellation of upper extremity symptoms from compression of neurovascular structures coursing through the Thoracic outlet syndrome (TOS) is characterized by the compression of neurovascular structures as they pass through the thoracic outlet, leading to a spectrum of symptoms ranging from mild pain to limb-threatening complications. Thoracic outlet syndrome (TOS) describes a pain syndrome of the neck and arm caused by compression of nerves or blood vessels on arm motion. Aug 31, 2016 · In thoracic outlet syndrome (TOS), a compressed nerve or blood vessel causes pain in your arm, shoulder, and neck. The type and severity of symptoms will depend on the cause of thoracic outlet Jul 31, 2025 · Introduction Thoracic outlet syndrome (TOS) refers to the clinical features that arise from compression of the neurovascular bundle within the thoracic outlet. It occurs from a narrowing of the thoracic outlet. The most common locations is between the anterior and middle scalene muscles. The thoracic outlet is shaped like a triangle and is found Aug 15, 2025 · Learn about the common symptoms and treatments for thoracic outlet syndrome, a chest and neck pain condition caused by compressed blood vessels or nerves. 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. D. In addition, these factors may increase your chances of developing thoracic outlet syndrome: Thoracic outlet syndrome (TOS) is the compression of nerves and blood vessels in the upper chest that travel to the arms through a passage called the thoracic outlet. Symptoms of thoracic outlet syndrome include: Cold feeling or other signs of poor circulation in the forearm or hand Neck and shoulder pain or tingling Sores on the fingers that don’t heal well Swelling in the affected arm Thoracic outlet syndrome (TOS) occurs when the vessels and/or nerves running from the upper body to the arm become compressed, leading to swelling, reduced blood flow, tingling, weakness, pain and/or numbness in the neck, shoulder, arms or hands. Neurogenic TOS more often affects women, while arterial TOS and venous TOS affect people of all genders. Vascular complications of thoracic outlet syndrome are uncommon and include thromboembolic phenomena and swelling. This is the most common type. It occurs when nerves or blood vessels in part of the upper chest, known as the thoracic outlet, are compressed. TOS can cause arm and hand pain, numbness, weakness, and swelling. This often results in neck pain, shoulder pain, and arm pain. Our vascular specialists treat thoracic outlet syndrome with the most up-to-date, least-invasive techniques, physical therapy and pain relief. Sometimes it causes swelling. However, the nerves may also be compressed under a cervical rib, or under the pectoralis Key points about thoracic outlet syndrome Thoracic outlet syndrome is a variety of symptoms that happen from a narrowing of your thoracic outlet. Feb 1, 2025 · Thoracic outlet syndrome is a variety of symptoms that happen from a narrowing of your thoracic outlet—the space between your collarbone and your first rib. Three common subcategories are now used for clinical Thoracic outlet syndrome is a set of symptoms in the shoulder, arm, or hand. It can result from injury, disease, or a problem you had from birth. The thoracic outlet is the area of the upper chest and base of the neck that is bound by the scalene muscles Sep 1, 2024 · Thoracic outlet syndrome is a complex syndrome that manifests with symptoms based on the presumed injury or impairment of the neurovascular structures in the thoracic outlet space with its intricate anatomy and pathophysiology. yvokh lmwmx vz2j ixtbr 7zj h6si lllr bah ffy4x v2