Introduction. The severity of the psoriatic process is associated with the involvement of the scalp, genitals, fold zones and nails in the process. The selection of effective therapy for psoriasis of difficult localizations is an urgent task of modern dermatology.Aim. To evaluate the effectiveness of treatment of moderate psoriasis and nail psoriasis with an IL-17A inhibitor in combination with a combined betamethasone dipropionate + salicylic acid ointment.Material and methods. A 12-week prospective study included data from 60 patients who were under observation at the Moscow Scientific and Practical Center of Dermatovenereology and Cosmetology in 2020-2021. Group 1 included 30 patients who received only the biological drug IL-17 inhibitor. Group 2 included 30 patients who received an IL-17 inhibitor in combination with topical therapy with an ointment of 0.05% betamethasone dipropionate and 3% salicylic acid (Rederm). The ointment was applied twice a day in two courses of 3 weeks with a break of 6 weeks between courses. When comparing indicators between groups, Student’s t-test was used for normal samples and the Mann- Whitney test for non- Gaussian samples.Results. When comparing PASI and NAPSI in patients of group 2 who received an IL-17 inhibitor in combination with external therapy with an ointment of 0.05% betamethasone dipropionate and 3% salicylic acid 2 times a day for two courses of 3 weeks with a break of 6 weeks between courses, the index values statistically significantly decreased after 12 weeks of therapy (p = 0.003) compared to group 1 (p = 0.015).Conclusions. The study showed that patients who received an IL-17 inhibitor in combination with a combined betamethasone dipropionate + salicycylic acid ointment achieved a significantly greater effect compared to patients who received only biologics. In addition, the combination with Rederm ointment has shown greater efficacy in the treatment of psoriatic onychodystrophy, which is difficult to treat even with biologics.

Early diagnosis of skin melanoma is one of the most reliable ways to improve the prognosis for the life of patients with this tumor. Organization of medical care for patients with a high risk of developing melanoma, together with the use of non-invasive diagnostic methods and teaching the patient the principles of prevention and early diagnosis of skin malignancies should improve the survival rates of patients with melanoma. The article discusses the experience of implementing the Organizational model of medical care for patients with skin neoplasms in Moscow, as well as the key rules for managing patients at risk of developing skin melanoma with special emphasis on recommendations to patients for regular self-examination of the skin, lifestyle correction and the use of photoprotective agents.

In recent years, there has been an increase in the proportion of AFA in the structure of acne incidence. The etiopathogenesis of the disease is multicomponent and has not been fully elucidated. It is assumed that hormonal factors and chronic activation of innate immunity are involved in the process against the background of genetic predisposition, which are stimulated by external environmental factors: daily stress, Western-style diet, tobacco use, hormonal drugs, cosmetics. The article presents a modern classification of the clinical course of AFA and scales for assessing the severity of the course of the disease: GEA (Global Acne Severity Scale) and AFAST (Adult Female Acne Scoring Tool). AFA is predominantly characterized by a mild or moderate course. Treatment requires a personalized approach with particular attention to the individual needs and characteristics of adult women. When choosing a topical therapy, the doctor should consider the less pronounced oiliness of the skin, the slow progression of the disease with the outcome in hyperpigmentation and scarring. Modern acne treatment regimens include systemic and topical therapy along with proper basic skin care. The most effective topical agents include retinoids, which can induce a specific biological response by binding and activating retinoic acid receptors. Comedonal and mild papulopustular acne are indications for adapalene monotherapy for acne in adult women. Adaklin (0.1% adapalene) cream is a highly effective first choice for the pathogenetic treatment of AFA. Rational mono- and combination therapy with adapalene is the key to successful external therapy of mild and moderate AFA and prevention of post-acne. The review provided up-to-date, evidence-based information on the clinical presentation, etiopathogenesis, and treatment of adult female acne (AFA).

Acne vulgaris is a common chronic skin disease involving blockage and inflammation of pilosebaceous units. It has a genetic predisposition and sharply reduces the quality of patients’ life and the level of their social adaptation through the formation of conspicuous cosmetic defects in open areas of the skin. The processes of pathological scarring (atrophic, hypertrophic and keloid scars) is described in detail as one of the most severe consequences of acne vulgaris and its treatment. The problem is described from the modern point of view of the pathogenesis of acne vulgaris. Differential diagnosis between keloid and hypertrophic scars, as well as the most relevant approaches to classification and evaluation of severity of postacne scarring according to the valid international scales, are presented.

Scars are an urgent issue for many areas of practical medicine, especially for dermatovenerologists, cosmetologists and plastic surgeons. Every year, 100 million patients develop new scars and about 11 million of them are keloid. The issue of differential diagnosis of keloid and hypertrophic scars is still the subject of discussion among specialists. Despite the wide variety of available methods of treatment of keloid and hypertrophic – surgical excision, injections of glucocorticosteroids, laser therapy, cryotherapy, compression therapy and silicone bandages are the most effective and pathogenically rationalised methods for the correction of pathological scars. Promising methods of therapy are: injections of interferon, recombinant human TGF-β3 polypeptide, platelet-rich plasma, calcium channel blockers, lipofilling, the use of angiotensin-converting enzyme inhibitors, creams based on imiquimod and resiquimod, growth factors, stem cells. The article presents an up-to-date view on the processes of physiological and pathological scarring, the most important aspects of the differential diagnosis of keloid and hypertrophic scars, the understanding of which is important for choosing the right therapeutic strategy. Particular attention is paid to the pathophysiological mechanisms of action, the advantages and features of the use of silicone dressings. The authors present the clinical experience of successful two-stage correction of keloid scar – post-acne with the use of injection therapy with hyaluronidase and silicone dressings.