Fever, cough, fatigue, loss of smell… These are all symptoms that can be associated with Covid-19. But over the course of the epidemic, new manifestations of this disease due to the Sars-Cov-2 coronavirus have been identified.
Last April, the National Syndicate of Dermatologists-Venereologists (SNDV) thus alerted to new skin symptoms of Covid-19. Identified by more than 400 dermatologists gathered in a WhatsApp group, these manifestations mainly concerned adolescents and young adults, most often asymptomatic.
Shortly after, the French Society of Dermatology unveiled its first progress point concerning the collection of skin lesions that may be associated with Covid-19. Since then, new studies on the subject have been published. We take stock of the main skin manifestations of Covid-19.
“Acrosyndromes”. This is the term used by the National Union of Dermatologists-Venereologists to refer to certain skin lesions identified during the coronavirus epidemic. This word refers to a set of symptoms affecting the extremities. In the context of the pandemic, these manifestations rather take the form of pseudo-frostbite of the extremities. “The presentation can be that of banal frostbite (pink purplish lesions of the painful or itchy extremities) others are more swollen, even bullous and crusty, with sometimes an extension on the back of the feet or hands”, added the French Society of Dermatology.
Transient urticaria lesions have also been identified during the Covid-19 epidemic. “These are mainly distributed on the trunk or scattered. In some cases, these lesions were palmar”, can we read in a study published in April in the British Journal of Dermatology.
Redness of the face
Another skin manifestation potentially associated with Covid-19: facial redness. A symptom that appears suddenly and can sometimes be painful, specifies the National Union of Dermatologists-Venereologists.
Various skin rashes
The study of British Journal of Dermatology has also identified vesicular rashes as part of the Covid-19 epidemic. “Some were on the trunk and were made up of small, monomorphic vesicles. They can also affect the limbs, have hemorrhagic content and become larger or diffuse.”, can we read.
The presence of maculopapules, in other words red spots, has also been described. These were sometimes similar to pityriasis rosea, an inflammatory disease characterized by diffuse scaly papules or patches.
The study published in the British Journal of Dermatology highlights the presence of livedo in some patients affected by the coronavirus. This skin manifestation takes the form of a purplish and mottled erythema and can progress to necrosis.
Enthema is a rash that appears on the mucous membranes like the mouth and takes the form of red spots. Very common in people affected by a viral infection such as chickenpox or foot-and-mouth disease, it has also been identified in patients with Covid-19. This is what reveals a Spanish study published in the journal JAMA Dermatology. “The oral rash appeared between two days before the onset of the other symptoms of Covid-19 and 24 days after, with an average delay of around 12 days after the onset of symptoms”, underline this research.
Skin manifestations associated with Covid-19 can also take other, more diverse forms. However, the presence of such symptoms is not necessarily related to coronavirus infection, which underlines the importance of screening. “We are alerting the population and the medical profession in order to detect these potentially contagious patients as quickly as possible (without necessarily showing signs of breathing difficulties)”, explained last April the National Union of dermatologists-venereologists in a press release.