The cervicothoracic junction on chest radiograph.

Fractures of the first rib may be detected by indirect signs, including apical extrapleural fluid collection, pneumothorax, and supraclavicular soft tissue mass. Thoracic outlet syndrome represents a complex series of abnormalities that may be clarified utilizing digital subtraction angiography. Major distortions of alignment can produce bony adaptive changes at the cervicothoracic junction simulating intra-spinal canal tumors.