Covid-19 Vaccine Associated Erythema Nodosum: factors to consider

Erythema nodosum as an unusual skin manifestation of long COVID: A case report

Erythema nodosum (EN) is a skin manifestation of panniculitis characterized by symmetric, painful, tender nodules, and most cases are self-limiting. Few cases of EN following Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) vaccination have been reported, and they are generally self-limiting. We reported the challenging case of a 63-year-old Asian woman with EN that persisted for more than three months after a coronavirus disease-19 (COVID-19). There was no improvement despite topical steroid and NSAIDs treatment, and the patient was successfully treated with combination of high-dose steroid and NSAIDs. There were long-lasting symptoms involving various organ symptoms persisting over three months after COVID-19, which is known as Long COVID. As part of Long COVID, there are limited cases of skin manifestations. Given that immune dysregulation due to persistent coronaviruses may contribute to refractory EN, Erythema nodosum related to COVID-19 is rare, but can occur; clinicians should be aware of the occurrence of EN following COVID-19 infection.

Erythema Nodosum following Nocardia Infection: A Case Report

Cutaneous nocardiosis is a rare bacterial infection that can result in various dermatologic manifestations such as actinomycetoma, lymphocutaneous infection, superficial skin infection, and secondary infection due to hematogenous dissemination. We report on a Chinese patient with erythema nodosum-like exanthema, possibly secondary to nocardiosis. Our diagnosis for this patient was based on the clinical presentation, histopathological evidence, and microbiological findings. Given the protean manifestation of Nocardia, persistent reports on new presentations of the disease are important for early identification and treatment.

Erythema nodosum after COVID-19 vaccine: Report of two pediatric cases

With the introduction of large-scale COVID-19 vaccination programs, a variety of cutaneous manifestations have been described. We present two girls (ages 12 and 5 years) who developed erythema nodosum (EN) 3 and 14 days after Pfizer-BioNTech COVID-19 vaccination, respectively. While EN after COVID-19 vaccination has been reported in adults, it is can also occur in children.