Cytomegalovirus-induced cutaneous ulcer mimicking vasculitis in a patient with systemic lupus erythematous: A case report and review of the literature

Abstract

Systemic lupus erythematosus (SLE) is a chronic autoimmune disease which can be complicated with cytomegalovirus (CMV) infection during its course. CMV reactivation can mimic an SLE flare and lead to delay in diagnosis. Here, we reported a previously diagnosed SLE patient who presented with fever, leukopenia, and cutaneous ulcers. Initially, this was diagnosed as an SLE flare and the patient was treated with higher doses of corticosteroids but no improvement was observed. Both nuclear and cytoplasmic inclusions inside the endothelial cells in the skin biopsy as well as positive immunohistochemistry (IHC) staining for CMV antigen were clues to the correct diagnosis of CMV reactivation. Treatment with ganciclovir resulted in clinical resolution. In this report, a very rare clinical form of CMV infection manifesting as cutaneous necrotizing vasculitis on the lower extremity is described and the literature regarding this case is reviewed.

Keywords

Cytomegalovirus systemic lupus erythematosus cutaneous ulcer

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