Question

1. COVID-19 is caused by the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), and is closely related to SARS-CoV-1 (Severe Acute Respiratory Syndrome Coronavirus 1) and MERS-CoV (Middle Eastern Respiratory Syndrome Coronavirus). Imaging studies have shown that COVID-19 results in pneumonia with “ground-glass opacification, consolidation, bilateral involvement, and peripheral and diffuse distribution.” (Lee et al (2020); The Lancet, 20(4), 384).

• Ground-glass opacification:
• Consolidation:
• Bilateral involvement:
• Peripheral and diffuse distribution:

Answer 1

Ans 1- Ground glass opacification - It is a radiological term which means an area of hazy increased lung opacity through which vessels and bronchial structures may still be seen. It indicates partial filling of air spaces in the lungs by exudate or transudate , as well as interstitial thickening or partial collapse of the lung alveoli.

Ans 2-Consolidation - It refers to dense opacities obscuring vessels and bronchial walls. A pulmonary consolidation is a region of normally compressible lung tissue that has filled with liquid instead of air.This condition is marked mainly by induration of a normally aerated lung .

Ans 3-Bilateral involvement- The lesions found in the lungs on CT images in the case of infection by