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RESEARCH PRODUCT

Cutaneous manifestations associated with anosmia, ageusia and enteritis in SARS-CoV-2 infection - a possible pattern? Observational study and review of the literature

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BACKGROUND: The cutaneous manifestations of coronavirus disease 2019 (COVID-19) have been covered insufficiently in the literature. METHODS: Thirty-nine patients admitted to the study hospital with confirmed COVID-19 who experienced various skin manifestations during hospitalization or in the convalescence period, were analysed retrospectively. RESULTS: Thirty-nine patients with COVID-19, admitted to the study hospital between 23 March and 12 September 2020, had intra-infectious rash or lesions of cutaneous vasculitis during convalescence. The most common cutaneous manifestations of COVID-19 were erythematous and erythematous papular rash. Twenty-seven of the 39 patients had anosmia (69.2%), 26 patients had ageusia (66.7%), 34 patients had pneumonia (87.2%) and 24 patients had intra-infectious enterocolitis (61.5%). Skin biopsies were rarely performed in these patients. This article reports the results of biopsies performed in two patients, showing histopathological and immunohistochemical changes in erythematous rash and erythema multiforme-like lesions. Both skin biopsies revealed early fibrous remodelling of the dermis, suggesting similarity with changes that occur in the lungs and other tissues in patients with COVID-19. CONCLUSIONS: Correlations between skin lesions and anosmia, ageusia and enteritis in patients with COVID-19 do not seem to be accidental, but are associated with a similar response to ACE2 receptor expression in these tissues.