Transverse orange nail lesions following SARS-CoV-2 infection Neri et al2 reported the case of a COVID-19 patient who developed the "red half-moon" sign, which consists in "distally convex half-moon-shaped red bands surrounding the distal margin of the lunula". However, unlike the evidence that we found in the literature, the nail lesions of our patient were located distally in the nails. [Extracted from the article]