Fig. 2
A 68-year-old male with angiotensin converting enzyme (ACE) inhibitor-induced angioedema involving the soft palate, pharynx and larynx. a Scout view of the neck computed tomography (CT) shows enlargement of the soft palate (arrow) and thickening of the retropharyngeal soft tissue (asterisk). b The sagittal reformatted contrast enhanced (CE)-CT shows marked swelling of the soft palate (arrow) and posterior pharyngeal wall (asterisk) with decreased attenuation. c The axial CE-CT image shows swelling of the left posterolateral retropharyngeal space (arrows), and narrow displaced pharyngeal airway (asterisk)