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It includes the prevertebral muscles (longus colli and longus capitis), vertebral artery, vertebral vein, scalene muscles, phrenic nerve and part of the brachial plexus. [3] In trauma, an increased thickness of the prevertebral space is a sign of injury, and can be measured with medical imaging. [4]
Superiorly, the retropharyngeal space terminates at the base of the skull (more specifically, at the clivus [2]). [1] [5] Inferiorly, the true RPS terminates at a variable level along the upper thoracic spine with the fusion of alar fascia and visceral fascia; [1] sources either give the inferior termination of the true RPS as occurring at approximately the vertebral level of T4 [2] or at a ...
Inferiorly, the prevertebral layer blends with the endothoracic fascia peripherally and fuses with the anterior longitudinal ligament centrally at approximately the level of the T3 vertebra. Due to this, the superior extent of the retropharyngeal space is essentially continuous with the root of the neck, and is termed the danger space.
The authors revealed that the alar fascia originated as a well defined midline structure at the level of C1 and does not reach the base of the skull. It is suggested that the area between C1 and the base of the skull is a potential entry into the danger space. [4]
In addition, indirect signs of injury by the vertebral column are incongruities of the vertebral lines, [11] and/or increased thickness of the prevertebral space: [12] X-ray of normal congruous vertebral lines
In addition, indirect signs of injury by the vertebral column are incongruities of the vertebral lines, [7] and/or increased thickness of the prevertebral space: [8] X-ray of normal congruous vertebral lines
Fascial spaces (also termed fascial tissue spaces [1] or tissue spaces [2]) are potential spaces that exist between the fasciae and underlying organs and other tissues. [3] In health, these spaces do not exist; they are only created by pathology, e.g. the spread of pus or cellulitis in an infection.
Retropharyngeal abscess (RPA) is an abscess located in the tissues in the back of the throat behind the posterior pharyngeal wall (the retropharyngeal space).Because RPAs typically occur in deep tissue, they are difficult to diagnose by physical examination alone.