4.0 Article

COVID 19-associated chilblain-like acral lesions among children and adolescents: an Italian retrospective, multicenter study

Journal

ITALIAN JOURNAL OF DERMATOLOGY AND VENEREOLOGY
Volume 158, Issue 2, Pages 117-123

Publisher

EDIZIONI MINERVA MEDICA
DOI: 10.23736/S2784-8671.23.07539-4

Keywords

SARS-CoV-2; COVID 19; Chilblains; Child

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Since the COVID-19 pandemic started, dermatological manifestations have been observed quite often among infected and non-infected patients, especially in children. This study reveals a possible association between acral cyanosis and nasopharyngeal swab positivity in children and teenagers.
BACKGROUND: Since the COVID-19 pandemic started, great interest has been given to this disease, especially to its possible clinical presentations. Besides classical respiratory symptoms, dermatological manifestations occur quite often among infected and non-infected patients, particularly in children. A prominent IFN-I response, that is generally higher in children compared to adults, may not only cause chilblain lesions, but it could also prevent infection and viral replication, thus justifying the negative swab results, as well as the absence of relevant systemic symptoms in positive cases. Indeed, reports have emerged describing chilblain-like acral lesions in children and adolescents with either proven or suspected infection. METHODS: Patients aged from 1 to 18 years old were enrolled in this study from 23 Italian dermatological units and were observed for an over-all period of 6 months. Clinical pictures were collected along with data on the location and duration of skin lesions, their association with con-comitant local and systemic symptoms, presence of nail and/or mucosal involvement, as well as histological, laboratory and imaging findings. RESULTS: One hundred thirty-seven patients were included, of whom 56.9% were females. Mean age was 11.97 & PLUSMN;3.66 years. The most com-monly affected sites were the feet (77 patients, 56.2%). Lesions (48.5%) featured cyanosis, chilblains, blisters, ecchymosis, bullae, erythema, edema, and papules. Concomitant skin manifestations included maculo-papular rashes (30%), unspecified rashes (25%), vesicular rashes (20%), erythema multiforme (10%), urticaria (10%) and erythema with desquamation (5%). Forty-one patients (29.9%) reported pruritus as the main symptom associated with chilblains, and 56 out of 137 patients also reported systemic symptoms such as respiratory symptoms (33.9%), fever (28%), intestinal (27%), headache (5.5%), asthenia (3.5%), and joint pain (2%). Associated comorbid conditions were observed in 9 patients presenting with skin lesions. Nasopharyngeal swabs turned out positive in 11 patients (8%), whereas the remainder were either negative (101, 73%) or unspecified (25, 18%). CONCLUSIONS: COVID-19 has been credited as the etiology of the recent increase in acro-ischemic lesions. The present study provides a description of pediatric cutaneous manifestations deemed to be potentially associated with COVID-19, revealing a possible association between acral cyanosis and nasopharyngeal swab positivity in children and teenagers. The identification and characterization of newly recognized pat-terns of skin involvement may aid physicians in diagnosing cases of asymptomatic or pauci-symptomatic COVID patients.

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