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Introduction. A decrease in nutrition of cancer patients affects all vital functions of the body, which is, according to numerous studies, typical of patients with gastrointestinal disturbances.Materials and methods. The study was set out to investigate the effect of correcting protein-energy malnutrition on the symptoms manifestation, including pain, fatigue, sleep disorder, poor appetite, nausea, vomiting, constipation and diarrhea in patients with generalized forms of gastrointestinal cancer. The study involved questionnaire method applied prior to the study and three months after. Three groups, equivalent in terms of selection criteria, participated in the study. For this purpose, the study participants were given nutridrink compact protein and omega-3 polyunsaturated fatty acid.Results and discussion. This study found out that timely nutritional support contributes toward reducing the negative symptoms of cancer and, when combined with supportive care and pain management, leads to significantly better results in terms of improving quality of life.Conclusion. Timely nutritional support has a positive effect on reducing the negative symptoms associated with cancer (pain, fatigue, sleep disorder, poor appetite, nausea, vomiting, constipation and diarrhea), and, along with supportive care and pain management, improves the quality of life more significantly.

Bladder cancer is globally considered as one of the most aggressive neoplasms. Traditionally, first-line therapy for metastatic urothelial carcinoma has remained unchanged over the past decades and has been based on combinations of cisplatin. Unfortunately, almost all patients eventually progress and die from bladder cancer, despite the initial response associated with cisplatin-based combinations. Immune checkpoint inhibitors are becoming an increasingly widely used therapeutic option in many solid tumors. In bladder cancer, a high level of programmed death-ligand is determined by rapidly progressive and aggressive tumors and unsatisfactory survival rates. Although checkpoint inhibitors are effective in metastatic urothelial bladder cancer, only a small proportion of treated patients receive a clear benefit, while a large number of patients experience significant side effects and toxicity without improving quality of life or surviving. None of the available biomarkers at this point was associated with response rates. There is evidence of an correlation between PD-L1 expression, the efficacy of immune checkpoint inhibitors, and treatment outcomes in patients with bladder cancer. A major paradigm shift in bladder cancer medicine has followed the FDA approval of avelumab, pembrolizumab, durvalumab, atezolizumab, and nivolumab for the treatment of patients with metastatic urothelial carcinoma previously treated with chemotherapy. Combining classical clinicopathological parameters with data obtained via information technology, together with genomic profiling, could be the future of personalized therapy for bladder cancer.

The off-label use of medicines is a routine clinical practice of oncology, especially in malignant-tumour patients with no treatment alternatives left when registered-drug options have been exhausted or standard therapies reveal contraindications. The recent shift from single-gene assays to multigene panels powered by full-exome or -genome sequencing expands the capacity of precision therapy, leading to a wider agnostic off-label use of targeted drugs for detecting a particular molecular genetic disorder. Studies of the off-label drug use in oncology will clarify the feasibility and safety of such prescriptions in patients with rare forms of malignancy when registered therapies have been exhausted or standard treatment reveals contraindications. This article examines the prevalence and landscape of off-label drug use in cancer patients and elaborates on the off-label principle. The paper presents a critical reflection on the off-label use of medicines in oncology.

The prevention of malignant neoplasms in a healthy population is a priority task of national healthcare systems. Population screening and genetic counselling programmes allow identification of not only precancerous conditions, but also a genetic susceptibility to tumour diseases. Most hereditary cancers are passed on following an autosomal dominant pattern. Timely screening in healthy individuals, who may be potential carriers of mutated genes, facilitates the development of personalized preventive measures. The history of breast and/or ovarian cancer in close relatives is an important factor in early detection of genetic mutations in healthy patients, both women and men. The history of breast, ovarian or prostate cancer in close relatives increases significantly the chances of detecting a germinal mutation in the BRCA1 and BRCA2 genes in a proband. Genes associated with an increased risk of developing pancreatic cancer are BRCA1, BRCA2, CDKN2A, PALB2, PRSS1 and STK11. The most common syndromes of genetic mutations increasing the risk of cancer development include hereditary breast and ovarian cancer syndrome, Lynch syndrome, familial adenomatous polyposis, Peutz—Jeghers syndrome and Lee­Fraumeni syndrome, multiple endocrine neoplasia syndrome.

Background . At the end of 2019, a new coronavirus infection emerged in the People’s Republic of China. On March 11, 2020, the World Health Organization announced the start of the COVID­19 pandemic. During 2018, 2068 patients with malignant neoplasms of the vulva were identified, with the majority of patients aged 75–79 years. Surgical treatment is currently the main treatment method for vulva cancer (VC) patients. According to most authors, surgical treatment is the only method providing good long­term results. One of the approaches to reducing the volume of surgical treatment in such patients is the selective biopsy of the sentinel lymph node (SLN). Aim . To apply the method of SLN biopsy in VC patients with the purpose of reducing the amount of surgical treatment and surgical complications, as well as shortening hospital stay in the context of the COVID­19 pandemic. Materials and methods. This paper presents the results of surgical treatment of 19 patients with malignant neoplasms of the vulva. All the patients were at risk for a complicated course of COVID­19 due to age and concomitant pathologies. In 13 cases, vulvectomy with SLN biopsy was performed. SLN biopsy was performed by radioisotope lymphoscintigraphy. Results and discussion . A decrease in the duration of hospital stay and the absence of surgical complications characteristic of lymphadenectomies were noted. Conclusion . Reducing the duration of hospital stay in the context of the COVID­19 pandemic is an urgent task. The method of SLN biopsy in patients with invasive squamous cell carcinoma of the vulva with T1A — T2 was found to be effective, allowing the amount of surgical treatment to be reduced. Vulvectomy accompanied by SLN biopsy is the surgical treatment of choice in the context of strict anti­epidemiological measures in the COVID­19 pandemic.

Introduction. Hepatocellular carcinoma (HCC) is the most common primary malignant neoplasm of the liver. During the early stages, HCC is asymptomatic, which makes X-ray examination a particularly important diagnostic tool. According to WHO data, the mortality rate from HCC was 782,000 in 2018. HCC is associated with a number of risk factors: a high viral load, liver cirrhosis, detected HBeAg and elevated serum HBsAg levels. Inhibitors of tyrosine kinase receptors increase the overall survival and progression-free survival rates in patients with metastatic HCC. In this article, we conduct an analysis of results of the REFLECT study obtained for Russian patients by the Republican Clinical Oncological Dispensary, Ufa.Materials and methods. The experimental group included 9 patients (52.9%) receiving Lenvatinib. The control group included 8 patients (47.1%)) underwent therapy with Sorafenib at a dose of 800 mg per day 7 (41.17%) patients had a history of chronic hepatitis, of which hepatitis B and chronic hepatitis C was confirmed in 6 and 1 cases, respectively.Results and discussion. Over the period from 2017 up to the present, progression-free survival was observed in three patients (17.6%), of which 2 and 1 received Lenvatinib and Sorafenib, respectively. Overall survival was 10.5 months. The median overall survival rate in the experimental and control groups was 9.8 and 11.2 months, respectively. These parameters are considered comparable, provided that the sample was small.Conclusions. The use of Lenvatinib demonstrated the efficacy comparable to that of Sorafenib in terms of the overall survival rate in patients with inoperable HCC. Lenvatinib allowed statistically and clinically significant improvement in the progression-free survival and time to progression to be achieved.

The establishment of oncology as a discipline in Russia should be considered taking into account the specifics of national history, as well as key historical events. In 2020, Russia celebrates the 75th anniversary of Victory in the Great Patriotic War (World Was II). Russian oncology also celebrates its 75th anniversary. April 30, 1945 is considered the birthday of the Russian oncological service connected with the publication of a historical resolution of the Council of People’s Commissars of the USSR No. 935 “On measures to improve oncological care to population.” In pre-revolutionary Russia, oncological care had the character of a private initiative, rather than a well-organised process. The tsarist government did not bear responsibility for organising the fight against cancer. The Great October Socialist Revolution contributed to the organisation of the fight against malignant neoplasms at the state level, based on the decisions of party congresses and healthcare laws. This created favourable conditions for improving and expanding anticancer care to the population. Soviet scientists-enthusiasts made a significant contribution to the development of oncology in the USSR. The organisation of medical professional societies facilitated the determination of main directions in the development of oncology as a discipline in the country. By the beginning of World War II, oncology in the USSR had acquired the character of an oncological care system, implementing measures aimed at developing and transferring into clinical practice early detection methods and those of treating malignant tumours, as well as their prevention. By the beginning of World War II, this system had comprised a large number of oncological dispensaries, located in almost all the republics of the Soviet Union. However, at that moment, there was still no unity in the creation of practical oncological institutions. Neither was practiced the registration of cancer cases, their account and observation, which measures are necessary for the prevention and early diagnosis of malignant tumours and precancerous diseases.

The issues of medical statistics on mortality from cancer, especially the correctness of such indicators, attract general interest. In a comparative aspect, mortality rates in different countries are given and the possible influence of various factors on the distortion of these indicators is described. The death rates in the Russian Federation, the Republic of Bashkortostan and Ufa are considered in detail. Comparison of the number of doctors and oncologists in the republics of Bashkortostan and Dagestan revealed some differences in the territories by the availability of doctors, especially oncologists. At the same time, the ratio of morbidity and mortality in these territories are in similar and correct parameters. A detailed analysis of the letters of the Ministry of Health of Russia with recommendations relating to the principles of coding for cancer in combination with another pathology. The statistical incident was the change in the coding rules for a post-mortem diagnosis in 2011 and the peculiarities of the translation of the text from ICD-10. According to the results of the analysis, proposals were developed aimed at the objectification of mortality rates and 5-year survival of cancer patients.

Aim. To study the dynamics of lung cancer (LC) morbidity among the population of five cities of the Republic of Bashkortostan over the period from 2010 to 2016 and the structure of industrial emissions for grounding of adequate integral index, connected with LC morbidity and development of preventive measures to decrease malignant neoplasms. Materials and methods. The structure of gross emissions of industrial enterprises and ecologohygienic assessment of atmospheric air was conducted according to the materials of the Department of Rospotrebnadzor in Bashkortostan for 2010-2016. Lung cancer morbidity in the above mentioned territories was studied by the materials of Republican Clinical Oncological Dispensary. To estimate the influence of gross emissions on LC morbidity, modeling technique, adequate to panel analysis of spatially dynamic structural data, was applied. Results. The assessment of carcinogenic risk of atmospheric air emissions, taking into account not separate carcinogens, but their combined effect as substances with similarly directed impact, detected accurate correlation of dependence of high LC morbidity on the resultant carcinogens action. Conclusions. High LC morbidity in the cities of Bashkortostan is connected with high gross emission of carcinogens into the atmospheric air. Information on gross emissions of carcinogens and their structure can serve as an integral criterion of atmospheric pollution impact on lung cancer morbidity.

In the paper there is presented a review of foreign and literature data, documented in electronic search system PubMed regarding epidemiology, early and prenosological diagnosis, carcinogenic factors for development of malignant respiratory neoplasms, lung cancer.

Using the autopsy material obtained from 20 human corpses, the samples of subcutaneous adipose tissue of the gluteal, abdominal, inguino-ileal and axillar areas, as well as the samples of mesenterial, retroperitoneal, mediastinal, pararectal and paranephral adipose tissue was studied histologically. The average sizes of the lobes and of adipocytes were measured, and the degree of the development of connective tissue elements was determined. Adipose tissue was found to have a similar general structural plan in all the areas studied, however the differences were noted in the thickness of the interlobular connective tissue septae and in tissue vascularization. The gluteal, inguino-ileal and anterior abdominal wall adipose tissue had the highest density. The lobules of this adipose tissue possessed the minimal numbers of adipocytes that had the smallest size. The mediastinal, retroperitoneal and paranephral adipose tissue was classified as a relatively loose one. The velocity of lipodestruction depended the degree of the development of connective tissue septae: this process proceed most rapidly in the mediastinal adipose tissue and most slowly--in the gluteal adipose tissue. In all the other areas studied, the duration of lipodestruction was the intermediate one.

Based on an analysis of morphological investigations the authors have shown distinctions of the adipose tissue in different topographic-anatomical areas of man. It was found that destruction of fat with an apparatus of sonolipodestruction takes different time. This technology was most efficient when used in operations on organs of the abdominal cavity, in mobilization of the spleen. In combined operations for gastric cancer the technology with sonolipodestruction allows mobilization of the spleen and 10, 11 groups of lymph nodes in obese patients with minimal complications. The technology described improves results of surgical operations in gastric cancer.

The paper discusses experimental findings in support of ultrasound destruction of fat tissue at different sites. Rate of destruction was designed to match that of development of the connective-tissue stroma of adipose tissue and size of adipose cells. Parameters of adipose tissue framework at different sites may be taken into account during extended lymph node dissection using ultrasound liposuction in oncological practice.