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Retropharyngeal abscess
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Retropharyngeal abscess : ウィキペディア英語版
Retropharyngeal abscess

Most commonly seen in infants and young children, retropharyngeal abscess (RPA) is an abscess located in the tissues in the back of the throat behind the posterior pharyngeal wall (the retropharyngeal space). Because RPAs typically occur in deep tissue, they are difficult to diagnose by physical examination alone. RPA is a relatively uncommon illness, and therefore may not receive early diagnosis in children presenting with stiff neck, malaise, difficulty swallowing, or other symptoms listed below. Early diagnosis is key, while a delay in diagnosis and treatment may lead to death. Parapharyngeal space communicates with retropharyngeal space and an infection of retropharyngeal space can pass down behind the oesophagus into mediastinum.〔John Grosso, MD, Charles M. Meyer, MD 〕 RPAs can also occur in adults of any age.
RPA can lead to airway obstruction or sepsis - both life-threatening emergencies. Fatalities normally occur from patients not receiving treatment immediately and suffocating prior to knowing that anything serious was wrong.
==Signs and symptoms==
Symptoms may include stiff neck (limited neck mobility or torticollis),〔Frances W. Craig, MD
*, Jeff E. Schunk, MD ("Retropharyngeal Abscess in Children: Clinical Presentation, Utility of Imaging, and Current Management" )〕 some form of palpable neck pain (may be in "front of the neck" or around the Adam's Apple), malaise, difficulty swallowing, fever, stridor, drooling, croupy cough or enlarged cervical lymph nodes. Any combination of these symptoms should arouse suspicion of RPA.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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