| 1. | These anatomical boundaries make it continuous with the retropharyngeal space.
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| 2. | Some sources say the retrovisceral space is the same as the retropharyngeal space.
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| 3. | Posteriorly it is bordered by carotid sheath posteriolaterally and the retropharyngeal space posteriomedially.
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| 4. | The most likely differential diagnostic candidates are croup, peritonsillar abscess, and retropharyngeal abscess.
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| 5. | Other sources say that the retrovisceral space is " continuous superiorly " with the retropharyngeal space.
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| 6. | If more than half of the size of the C2 vertebra, it may indicate retropharyngeal abscess.
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| 7. | The retropharyngeal space is found anterior to the danger zone, between the alar fascia and buccopharyngeal fascia.
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| 8. | These include extension of retropharyngeal cellulitis or abscess, mediastinitis following esophagus perforation, and dental or periodontal abscess.
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| 9. | They frequently disappear by age 4-5 . ( This is why retropharyngeal abscess is rare in older children .)
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| 10. | If the retropharyngeal space is more than half of the size of the C2 vertebra, it may indicate retropharyngeal abscess.
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