Section of the neck at about the level of the sixth cervical vertebra. Showing the arrangement of the fascia coli.
The danger space or alar space, is a region of the neck. 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.
The retropharyngeal space is found anterior to the danger zone, between the alar fascia and buccopharyngeal fascia. There exists a midline raphe in this space so some infections of this space appear unilateral.
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- Adelson, Robert T. (2005). "Minimally invasive transoral catheter-assisted drainage of a danger-space infection". Ear, Nose & Throat Journal. Retrieved 2008-02-18.
- Grodinsky M, Holyoke EA. The fasciae and fascial spaces of the head, neck and adjacent regions. Am J Anat 1938;63:367-408.
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