Darya's disease: rare dermatosis with complicated manifestations

The pathogenesis of the disease is associated with mutations in the ATP2A2 gene of chromosome 12q23-24, which disrupt intracellular calcium metabolism. COVID-19 infection is known to cause a cytokine storm characterized by increased levels of tumor necrosis factor (TNF), interleukin (IL) 6 and 1β. TNF and IL-6 additionally reduce the activity of type 2 calcium ATPase in patients with Darye's disease. The typical clinical picture of rare hereditary dermatosis is characterized by hyperkeratotic papules located in seborrheic zones. Papules tend to fuse to form plaques. The surfaces of the palms and soles are also a frequent localization of the pathological process. Papules may grow into hypertrophic vegetations, damage to nails and oral mucosa, and the addition of secondary bacterial and viral infections. The typical course is of a continuous progressive nature with periods of exacerbation and incomplete remission. Systemic retinoids are the basis of therapy for Darye's disease. In addition, glucocorticosteroids and cyclosporine are systematically used. Local therapy includes keratolytic and antiseptic drugs, emollients.

A case of clinical observation of a 39-year-old patient with Darye's disease is presented. The diagnosis was made based on the analysis of complaints, anamnesis, objective and local status, dermatoscopic picture, laboratory and histological examination. Against the background of ongoing therapy, the patient was discharged with clinical improvement and continues treatment on an outpatient basis.

The clinical observation of this case is of interest to practicing dermatovenerologists.