Q: What is "Danger Space" in the anatomy of the head and neck?
Answer: Going from vertebra to pharyngeal area (posterior to anterior), there are three spaces:
1. Prevertebral space
2. Danger space
3. Retropharnygeal space
Danger Space extends from the base of the skull downwards freely through the entire posterior mediastinum to the level of the diaphragm. Vertebrally it corresponds with T11-T12.
Clinical significance: Potentially, it provides a very functional route for the contiguous spread between the neck and the chest.
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