Desmoglein-1 Deficiency Mimicking Omenn Syndrome.

The article presents a case study of a 3-month-old patient with congenital non-bullous ichthyosiform erythroderma, initially misdiagnosed as Omenn syndrome but later identified with Desmoglein-1 (DSG1) deficiency. Topics discussed include the diagnostic process, the clinical features distinguishing DSG1 deficiency from Omenn syndrome, and the treatment approach including immunoglobulin replacement therapy and retinoid treatment.