Chronicles of A.I. Pospelov Moscow Society of Dermatovenerologists and Cosmetologists (MSDС founded on October 4, 1891). Bulletin of the MSDС No. 1161

The 1161^st meeting of the A.I. Pospelov Moscow Society of Dermatovenerologists and Cosmetologists was held on February 18, 2025.

The meeting, which included both clinical and scientific sections, took place in person in the conference hall of the V.A. Rakhmanov Clinic of Skin and Venereal Diseases (Sechenov University). A total of 110 participants attended. Nine membership applications were submitted to the Society—all from residents and staff members of the Department of Dermatovenereology at the N.I. Pirogov Russian National Research Medical University.

The clinical section featured a presentation on sarcoidosis with two patient cases, which expanded the general understanding of specific and nonspecific skin lesions. Another case report on subcorneal pustular dermatosis (Sneddon–Wilkinson disease) highlighted the subtleties of differential diagnosis with pustular psoriasis, impetigo, herpes gestationis, acantholytic pemphigus, and other conditions. It was emphasized that clinical presentation and histological examination are decisive in diagnosing this rare, chronic, benign, relapsing neutrophilic pustular dermatosis.

The scientific section opened with a report on Alexey I. Pospelov—the founder of the Moscow Scientific Society of Dermatologists and Venereologists and one of the key figures in the development of the Russian dermatological school. Professor Pospelov described oral mucosal involvement in lichen planus and psoriasis, idiopathic skin atrophy, advocated for the use of X-rays in diagnosing syphilitic bone lesions, and predicted their potential for therapeutic use, but also cautioned against adverse effects. He also developed the neurogenic theory of skin diseases and of alopecia areata.

Two additional reports in the scientific section addressed clinical manifestations of onychodystrophies and dermatoses associated with diabetes mellitus.