Fig. 2From: COVID-19 versus H1N1: challenges in radiological diagnosis—comparative study on 130 patients using chest HRCTMixed parenchymal/alveolar and airway abnormalities seen with H1N1: 37-year-old male H1N1 patient. a Axial HRCT chest lung window showing right sided mild alveolar ground glass nodular opacities (yellow square). b Axial HRCT lung window showing left lingular zone and to lesser extent right middle lobar air trapping with bronchiectatic changes (blue arrow) and mucous plugging (red arrow)Back to article page