Introduction: Hepatocellular cancer (HCC) is the sixth most common form of cancer worldwide and the third most common cause of cancer death. The long-term results of treatment are influenced by organizational decisions aimed at increasing the availability of specialized care. The purpose of our study is to evaluate the impact of rerouting and the introduction of a multidisciplinary approach on overall survival (OS) of patients with HCC. Materials and methods. A retrospective study was conducted to study the treatment tactics and results of treatment in all patients with HCC registered in the Sverdlovsk Regional Oncological Cancer Registry with a diagnosis of HCC from 2015 to 2021. A comparative analysis was carried out in 3 groups of patients: the control group, before changes, group of patients after changes in routing, and a group of patients with multidisciplinary approach involving a gastroenterologist/hepatologist and an interventional oncologist.

Results: There is an increase in the number of patients who received advice from an oncologist and referred for specialized treatment: 12.0 %, 19.5 % and 34.9 %, respectively (p < 0.001). Median OS increased significantly only in the multidisciplinary approach group of 3.1 versus 2.2 months (p = 0.002). Low overall survival rates are associated with a large proportion of late stages. A significant increase in OS was registered in the group of patients with BCLC C stage: from 3.4 months to 12.5 months (p = 0.046).

Conclusions: Simplifying the patient's route from a gastroenterologist to an oncologist shortens the time to treatment start, increases the number of patients who receive advisory assistance in an oncological dispensary, but does not affect OS. A multidisciplinary approach allows more patients to receive specialized care. At the same time, the maximum effect on OS is noted at the BCLC C stage.

Summary: Skin melanoma is one of the deadliest among human skin tumors, and surgery remains the first and main method in its combined treatment. Despite the seemingly radical nature of surgical interventions in patients with primary skin melanoma, the frequency of locoregional recurrence and metastasis remains high. The question of the impact of surgical treatment on the evolution of the melanoma microenvironment remains unclear.

Aim: to investigate the dynamics of polarization in tumor-associated macrophages in patients with primary skin melanoma of stage 0-IIa and in subsequent metastatic lesions to assess the impact of postoperative ischemia on survival of patients.

Results: it was found that in patients with primary skin melanoma of stage 0-IIa plastic replacement of a tissue defect, compared with conventional suturing, can lead to a decrease in the density in the intrastromal distribution of pro-inflammatory CD68 + macrophages in the surgical focus, as well as less frequent polarization of TAM cells in the M2 direction and migration to the intrastromal component of the tumor, their more frequent mixed content, which, as a result, affects the survival of this category of patients for the better.

Conclusions: plastic closing a surgical defect in patients with primary skin melanoma of stage 0-IIa may affect the duration of postoperative ischemia and the polarization of TAM cells. Plastic replacement of a tissue defect after tumor removal improves five-year survival rates (PFS by 22,6 % (p = 0.003) and OS by 13,1% (p = 0.029).

Introduction: The results of six randomized control trials have been published by 2022, which evaluated the efficacy of adding PD-1 inhibitors to the first-line chemotherapy in patients with metastatic esophageal cancer. However, it still remains unclear which patients derive the most clinical benefit from combined therapy. Therefore, it is necessary to evaluate the efficacy of the combination of anti-PD1 treatment with chemotherapy in different patient subgroups.

Materials and methods: We conducted a meta-analysis of randomized controlled trials in patients with stage IV esophageal cancer who received anti-PD1 drugs with different chemotherapeutic regimens in the first-line setting to select patients who benefit the most from the combined therapy.

Results: Six randomized trials were included in the analysis for a total of 3,813 patients. Patients who received combination therapy had significantly longer OS (HR = 0.69, 95% CI: 0.63-0.75; p < 0.001), PFS (HR = 0.62, 95% CI: 0.56-0.69; p < 0.001), and better ORR (OR = 2.12, 95% CI: 1.85-2.42; p < 0.001) than those who received chemotherapy alone. Subgroup analyses showed no benefit of adding PD1-inhibitors to chemotherapy in patients with PD-L1 CPS <1 in terms of OS (HR = 0.58, 95 % CI: 0.31-1.1; p = 0.1) as well as in never-smokers (HR = 0.9, 95% CI: 0.67-1.23; p = 0.52).

Conclusions: The addition of PD-1 inhibitors to the first-line chemotherapy in patients with metastatic esophageal cancer significantly improves treatment outcomes. Our results could not strongly suggest the selected patients' cohort which would benefit the most from the combination of PD-1 inhibitors and chemotherapy use.

The Russian consensus on prevention, diagnostic and treatment of gastric cancer was prepared on the initiative of the Moscow clinical scientific center named after A. S. Loginov according to the Delphi method. Its aim was to clarify and consolidate the opinions of specialists on the most relevant issues of prevention, diagnosis and treatment of gastric cancer. An interdisciplinary approach was provided by the participation of leading gastroenterologists, oncologists and surgeons.

The high prevalence and steady increase in the incidence of endometrial cancer dictate the need to prevent and improve the effectiveness of treatment of this disease. The solution of these issues is possible either by expanding the indications for surgical treatment in endometrial proliferative processes, or by improving conservative methods of therapy, which is of priority importance, since some patients often have the question of preserving reproductive function.

Leading oncogynecological communities have come to a consensus: conservative treatment with preservation of fertility is possible and safe for young patients with endometrioid endometrial cancer of a high degree of differentiation, limited to endometrial damage only. According to published studies, the use of progestins gives a high frequency response to treatment in patients with atypical hyperplasia and early endometrial cancer. Combined treatment methods, including the use of metformin or hysteroscopic resection after drug therapy, can reduce the frequency of relapses.

In the absence of larger prospective studies, it is very important to consider a woman's overall health and fertility potential before recommending conservative treatment for early endometrial cancer. It is necessary to conduct further randomized controlled trials in order to provide more convincing evidence of the benefits of a particular technique.

The TC combination regimen (paclitaxel + carboplatin) is the “gold standard” first-line therapy for disseminated endometrial cancer (EC). The use of hormone therapy (HT) in the first-line setting is limited. Until recently, patients with disseminated EC had unfavorable outcomes despite the standard-of-care treatment (chemotherapy (CHT) and HT). None of the available cytostatics could improve disease control and survival in patients who have received standard platinum-based therapy. Evidently, the poor treatment outcomes of disseminated EC suggested that therapeutic approaches should be changed, and more effective treatment regimens should be developed. The treatment of disseminated EC has been revolutionized with deeper understanding of carcinogenesis, a new molecular classification of EC, and stratification of treatment approaches according to the biological potential of the tumor. The most significant advances included understanding the role of microsatellite instability (MSI) and DNA mismatch repair (MMR) deficiencies as a predictor of high efficacy of immunotherapy, a novel class of systemic therapies for disseminated EC. This review article focuses on the evolution of systemic therapy for disseminated EC. Here we discuss in detail the results of key international trials of HT, first and second lines of chemotherapy, targeted therapy, immunotherapy, and immunotherapeutic/ targeted agents for disseminated EC. Biological markers, such as MSI and PD-L1, their correlation with the response rate, and the mechanism of synergy between pembrolizumab and lenvatinib are discussed in detail.

This article describes the rare clinical case of multiple radiation-induced angiosarcoma of the breast. Angiosarcoma is a rare, aggressive tumor originating from the endothelial cells of blood vessels that can affect internal organs, but the most common localization is the skin. The frequency of angiosarcoma development in the mammary gland is less than 1% of all malignant tumors of this localization. There are primary and radiation-induced (secondary) angiosarcomas. The reason for describing this clinical case is the rarity of this pathology, relatively little experience in the diagnosis and treatment of radiation-induced angiosarcoma both in our country and abroad.

Immune checkpoint inhibitors are associated with a wide spectrum of immune-related adverse events (AE) of different severity. Immune-related sarcoidosis-like reactions are relatively rare but clinically important AEs. These abnormalities, due to the appearance of active pathological lymph nodes or nodules in other organs on radiographs, can be falsely interpreted as tumor progression or stabilization and thus affect treatment strategy, leading to unreasonably early therapy discontinuation or its unnecessary continuation. So far there were no convincing criteria for differentiation between sarcoidosis-like reaction and sarcoidosis, oncologist should be aware of this reaction and include it in the differential diagnosis in patient with suspected disease progression who are treated with immune checkpoint inhibitors.