Abstract
Sir, A 74-year-old female patient treated with angiotensin-converting enzyme inhibitor for arterial hypertension with metformin and atorvastatin for insulin-independent diabetes mellitus and hyperlipidemia, respectively, consulted the outpatient dermatological clinic for a rash that appeared fifteen days prior to consultation. The patient received the second dose of mRNA COVID-19 vaccine on July 29, 2021, and was due to receive the third dose on December 29, yet she fell ill on day 6 of the same month, probably being infected by one of her grandchildren. The eruption consisted of erythematous, purpuric macules on the anterior face of both tibia (Fig. 1a), of a solitary papule on the left hand (Fig. 1b), and of erythematous papules with a scale on the border on the left buttock (Fig. 1c). A collarette formed on the trailing edge of the advancing border of the hand lesion, a clinical sign pathognomonic of pityriasis rosea. Intense pruritus accompanied the eruption. No herald patch was observed, nor lesions on the trunk, being the typical location of lesions of pityriasis rosea, while lesions on the hands are absent in the typical cases of the disease. The oral and genital mucosae were intact. The cutaneous manifestations of COVID-19 include purpuric, chilblain, vesicular, urticarial, and pityriasis rosea-like lesions. Acral lesions are the most frequent location of the cutaneous manifestations associated with COVID-19 infection [1]. An acral distribution of lesions is a feature of mouth, hand, and foot disease due to infection with Coxsackie A16 virus [2], although no reactivation of this virus has been detected during the COVID-19 pandemic, while the reactivation of herpes 6 and herpes 7 virus associated with pityriasis rosea has occurred
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