Dermato‐neuro syndrome after COVID‐19 infection in a patient with scleromyxoedema: Previously successful treatment with intravenous immunoglobulins

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Abstract
Scleromyxedema (SMX) is a rare disease of unknown cause. It is a chronic, progressive, metabolic disorder characterized by a generalized papular and scleroderma-like rash, as well as a subtype of lichen myxedematosus. Dermato-neuro syndrome (DNS) is a rare neurological complication of SMX. It has flu-like prodromal symptoms; consists of a triad of fever, coma, and seizures; and can be life-threatening. We describe a patient with SMX complicated by DNS after infection with COVID-19. Her symptoms resolved after treatment with acyclovir and low-dose glucocorticoids, suggesting that DNS seizures may have a viral cause. Her skin lesions also improved after seven courses of intravenous immunoglobulin treatment, confirming that intravenous immunoglobulin is effective in these cases.

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