supraklavikular

Supraclavicular, often used in Turkish as supraklaviküler, refers to structures located above the clavicle (collarbone). In medical contexts the term describes an anatomical region as well as specific tissues, such as lymph nodes, vessels, and nerves, that reside in or pass through that area. It is also used to name clinical procedures performed in this region, including nerve blocks.

Anatomy and boundaries of the supraclavicular region include the area bounded by the clavicle and the overlying skin, with the sternocleidomastoid muscle anteriorly and the trapezius muscle posteriorly. The floor is formed by the first rib and the cupula of the pleura, with the apex of the lung lying just beneath. The region houses components of the brachial plexus trunks, parts of the subclavian artery and vein, and numerous supraclavicular lymph nodes. The supraclavicular fossa is a notable subregion that can be palpated above the clavicle, particularly near the lateral edge of the sternocleidomastoid.

Clinical relevance includes the presence of supraclavicular lymph nodes, which can become enlarged in infections, inflammatory conditions, or malignancies. Left-sided supraclavicular lymphadenopathy, known historically as Virchow’s node, can be a sign of metastatic disease from abdominal or thoracic primaries, including gastric cancer. Because the region overlies the apex of the lung, procedures in this area carry a risk of pneumothorax if not performed carefully.

Procedural and imaging aspects involve supraclavicular nerve blocks for upper limb anesthesia, and imaging modalities such as ultrasound, CT, or MRI to evaluate structures in the region and guide interventions.