Fig 2. Axial Computed Tomography images of four patients with COVID-19.

In particular, in a and b, one 74 years-old female and one 82 years-old male with reduced muscle mass (i.e., < 30 Hounsfield unit) hospitalized in intensive care unit. In c and d, two male patients (54 years old in a and 65 years old in b) hospitalized in COVID-19 wards demonstrating muscle values above the threshold for muscle loss.