Retropharyngeal abscess presenting as acute airway obstruction in a 66-year-old woman: A case report

Figure 1 MRI findings. A: Contrast-enhanced MRI shows the retropharyngeal abscess and obvious upper airway stenosis (yellow arrow); B: MRI suggests that upper airway stenosis was significantly alleviated after surgery (yellow arrow). MRI: Magnetic resonance imaging.

Figure 2 Histopathology findings. A: Histopathology shows granulation hyperplasia (magnification × 200) in the retropharyngeal abscess tissues; B: Inflammatory necrosis (magnification × 400) in the retropharyngeal abscess tissues. HE: Hematoxylin and eosin.