Retropharyngeal Abscess Flashcards
What is a retropharyngeal abscess?
A neck infection involving abscess formation in the space between the prevertebral fascia and constrictor muscles
What is essential in retropharyngeal abscess?
Early recognition and aggressive management
Why is early recognition and aggressive management important in retropharyngeal abscess?
There is significant morbidity and mortality
What is the retropharyngeal space?
A potential space in the head and neck
What is the anterior border of the retropharyngeal space?
Buccopharnygeal fascia
What is the posterior border of the retropharyngeal space?
Alar fascia
What is contained within the retropharyngeal space?
Retropharyngeal lymph nodes
What is the consequence of the anatomy of the retropharyngeal space?
If an abscess develops it is limited to one side of the midline by the median raphe of the buccophrayngeal fascia
What communicates with the retropharyngeal space?
The parapharnygeal space
What does the retropharyngeal space’s communication with the parapharyngeal space allow?
Spread of infection down behind the oesophagus and into the mediastinum
What usually causes a retropharyngeal abscess to form?
Spread of a bacterial infection from other sites
Bacterial infection in what sites can cause retropharyngeal abscess?
- Nasopharynx
- Tonsils
- Sinuses
- Adenoids
- Molar teeth
- Middle ear
What must a bacterial infection of the retropharyngeal space do to form an abscess?
Suppurate (produce pus)
What are the most common bacterial causes of retropharyngeal abscess?
- Beta haemolytic strep
- Staph aureus
- Haemophilus influenzae
- Anaerobes
What can also cause a retropharnygeal abscess (besides spread of infection)?
Direct infection due to penetrating injury or foreign body