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On plain radiography, prevertebral space should be less than 6 mm at C3 vertebral level in children; while in adults, the space should be less than 6 mm at C2 level and less than 22 mm at C6 level. Causes of enlarged prevertebral space could be edema, hematoma, abscess, tumors, and post surgical changes. [5]
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.
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.
The danger space or alar space, is a region of the neck. [1] The common name originates from the risk that an infection in this space can spread directly to the thorax , and, due to being a space continuous on the left and right, can furthermore allow infection to spread easily to either side.
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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]
Love, passion and self-expression are front and center for you this month, Aries. Once Venus enters your sign on Feb. 4, your charm and magnetism get a significant boost, making you feel like the ...
This clears up space and helps to reduce confusion. Install adequate lighting: Ensure that the kitchen is well-lit to avoid mishaps. Consider under-cabinet or focus lighting for better visibility.