Pathomorphological study of trephinobiopsy specimens from 129 patients with lymphoproliferative and myeloproliferative diseases was carried out over the course of chemotherapy. Combinations of initial and manifest myelofibrosis (loose network of reticulin fibers and extensive network of reticulin and collagen fibers, respectively) predominated at the debut of chronic myeloid leukemia, chronic lymphoid leukemia, and multiple myeloma. Manifest myelofibrosis was detected in patients with chronic myeloid leukemia without hematological response (failure of normalization of hematological values) and in patients with progressing and relapsing multiple myeloma. Combinations of foci of initial and manifest myelofibrosis were most incident in patients with progressing and relapsing chronic lymphoid leukemia. The incidence of myelofibrosis was higher in patients with multiple myeloma and chronic lymphoid leukemia progression and relapses and in patients with chronic myeloid leukemia without hematological response than at the disease debut and in case of response to chemotherapy. The response to chemotherapy in patients with chronic myeloid leukemia and chronic lymphoid leukemia was associated with a decrease in the incidence of myelofibrosis. In patients with multiple myeloma responding to chemotherapy, the incidence of myelofibrosis did not change in comparison with the disease debut.

The article presents 3 clinical observations of women of 51, 55 and 57 years old with severe rosacea, who reached the state of remission after a prolonged course of systemic therapy with low doses of isotretinoin. Cumulative dose of isotretinoin for persistent clinical remission was 46.4 mg/kg of weight, 17.6 mg/kg, 12.6 mg/kg respectively. Difficulties related to the subjective perception of patients of his condition has limited the possibility of increasing daily dose of isotretinoin, and the lack of result from the previous therapy with basic medications has made isotretinoin a drug of choice.

Objective. To assess clinical and morphological changes in the skin in patients with severe to moderate acne in the course of systemic treatment with isotretinoin in the form of LlDoSE. Materials and methods. The authors conducted a study of the clinical and morphologic state of the skin in 40 patients with severe to moderate acne, who were administered the treatment with systemic retinoids. Previous external therapy was inefficient in 70% of the patients. As many as 45% of the patients developed scars as a result of the regression of acne vulgaris. To visualize the structure of the epidermis, derma and subcutaneous layer, the authors used the ultrasonic skin scanning method at the frequency of 75 M. Results. The skin scanning images obtained as a result demonstrated the possibility of visualizing inflammatory components in the derma, differences in the skin density indices in different facial zones prior to the therapy and reduction in these indices against the background of the systemic therapy with isotretinoin by the third month of the treatment.

Ige-dependent pemphigus is a rare autoimmune vesicular disease and is characterized by painful and itchy vesicular rashes on the skin. Ige-dependent pemphigus is one of the rarest forms of autoimmune bullous dermatoses. The article describes the clinical case of patient T., aged 82 y.o., who applied to the Novosibirsk Regional Clinical Dermatovenerologic Dispensary with complaints of rashes on the skin of the trunk, limbs, periodically accompanied by itching. For the first time, rashes began to appear 20 years ago, more often in the summer. She was observed by a rheumatologist with a diagnosis of chronic vasculitis, during exacerbation, against the background of therapy with systemic glucocorticosteroids, the rashes regressed. During the last exacerbation after suffering a Novel coronavirus infection at the age of 82 y.о., patient turned to a dermatologist against the background of an injection of a solution with betamethasone, with partially regressed rashes, which made it difficult to establish a diagnosis. After 2 weeks, against the background of discontinuation of therapy, another exacerbation occurred, characterized by obvious clinical manifestations of neutrophilic bullous dermatosis in the form of flaccid pustulеs on the skin of the trunk, upper extremities, as well as serous-purulent crusts arranged in the form of rings and garlands. Based on the history, clinical features and laboratory studies, without the use of immunofluorescence, a provisional diagnosis of IgA-dependent pemphigus was made, systemic glucocorticoid therapy was prescribed with a long-term gradual withdrawal, with a positive effect.

The reproductive and somatic health condition was studied in 60 women suffering from sexually transmitted diseases. It was established that a high rate of reproductive sphere pathologies (including related to STDs in the anamnesis) of the concomitant somatic pathology is developed in socially secure young patients suffering from STDs and intending to have a baby in the future. Efficacy of the complex therapy of mixed infections with Safocid, a combined drug, was demonstrated.