Danger Space Abscess

• Etiology:
  — Retropharyngeal space extends from skull base to T2
  — Danger space is posterior to retropharyngeal space, extends from skull base to diaphragm
  — Prevertebral space is posterior to danger space, extends from skull base to coccyx
  — So danger space abscess is deep neck collection extending into mediastinum / below T2
• Complications: abscess in danger space can cause descending necrotizing mediastinitis, jugular vein thrombophlebitis / thrombosis, carotid artery rupture, pericarditis / tamponade, bronchial erosion / pyopneumothorax

Cases of Danger Space Abscess