Danger space

The danger space is a potential space located behind the true retropharyngeal space, which connects the deep cervical spaces to the mediastinum

In healthy patients, it is indistinguishable from the retropharyngeal space. It is only visible when distended by fluid or pus, below the level of T1-T6, since the retropharyngeal space variably ends at this level.

It is a potential path for spread of infections (e.g. retropharyngeal abscess) from the pharynx to the mediastinum.​

Head and neck anatomy
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Article information

rID: 21595
System: Head & Neck
Section: Anatomy
Tag: cases, neck
Synonyms or Alternate Spellings:

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Cases and figures

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    Figure 1: expected location of the danger space (green)
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    Figure 2: yellow line on annotated MRI
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    Figure 3: yellow on annotated MRI
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