The article presents data on the prevalence, clinical, diagnostic and treatment characteristics of acute hyperlipidemic pancreatitis in children, based on a literature review and a clinical case presentation. The aim of this work is to define the nature of hyperlipidemic pancreatitis in children based on the literature review, and the clinical case presentation. Material and methods. The analysis of the literature data of the last 10 years through the Google Scholar and PubMed databases was performed. The clinical course, blood tests assessing protein and lipid indicators, abdominal ultrasound findings typical for acute hyperlipidemic pancreatitis were examined in a patient O. S., born in 2007. Results. The disease was diagnosis based on the study of anamnestic, clinical, laboratory and ultrasound findings. Lipid profile test revealed an increase in the level of cholesterol and triglycerides, and a decrease in the level of high-density lipoproteins. Abdominal ultrasound showed changes in the pancreatic tissues: the pancreas was significantly enlarged with a heterogeneous structure of the parenchyma, the echogenicity was significantly increased due to edema, and there was a small amount of effusion. Laparoscopic drainage of the omentum and abdominal cavity was recommended and performed. The key to the successful treatment was repeated long-term use of detoxification and hypolipidemic therapy in combination with dietary corrections (a low-fat diet). Conclusions. As of today, acute hyperlipidemic pancreatitis continues to be one of the least studied and rare pathologies among the pediatric population. This necessitates the search for and implementation of both diagnostic and treatment algorithms into clinical practice to timely correct and prevent complications.

Currently, the problem of diagnosing pleuropulmonary blastoma in children remains relevant, because this pathology often runs under the guise of other nosologies, including pneumonia, and is extremely difficult to diagnose. Currently there are no pathognomonic clinical symptoms, specific diagnostic criteria for this disease, almost 60% of patients have nonspecific symptoms. This article presents a rare clinical case of biphasic pulmonary blastoma in a child who was examined and treated at the Ivano-Frankivsk Regional Children's Clinikal Hospital Ivano-Frankivsk Regional Council. The main clinical manifestations, diagnosis and treatment of biphasic blastoma of the lungs in a child based on the observation of a 5-year-old girl who was hospitalized for acute abdominal pain, chest pain and cough. After clinical — laboratory and instrumental methods of examination, right-sided pneumonia and exudative pleurisy were diagnosed. The set of treatment measures did not give the expected positive effect, improving the patient's condition. Additional testing is required for suspected breast cancer. It has been established that the best method for verifying the diagnosis of pulmonary blastoma is multislice computed tomography with intravenous bolus contrast and immunohistochemical examination of the biopsy. The methods of treatment used in this case, including anti-inflammatory and polychemotherapy according to the scheme, the use of radical treatment at the National Cancer Institute in Kyiv — surgery right pneumonectomy with pericardial resection. The child is currently in stable remission for 4.5 years. The described clinical case demonstrates the difficulty of diagnosing lung blastoma in children due to the lack of typical clinical manifestations. The research was carried out in accordance with the principles of the Helsinki declaration. The informed consent of the patient was obtained for conducting the studies. No conflict of interest was declared by the authors. Key words: children, pneumonia, blastoma, pulmonology, diagnosis, treatment.

An analysis of domestic and foreign literature on the prevalence, causes and mechanisms of pneumonia in children. This article highlights the prevalence and features of the clinic and diagnosis of pneumonia in children based on a review of the literature. Out-of-hospital pneumonia today remains a pressing medical and social problem, often leading to complications and often causing the death of children, both in Ukraine and around the world, so it needs more in-depth diagnosis. It is known that the severity of this disease depends on age, etiology, comorbidity and timely hospitalization. The incidence and prevalence of respiratory diseases is one of the main indicators of health among children in the world. Therefore, the purpose of this research is to analyze foreign and domestic literature sources on the prevalence and search for the most informative diagnostic criteria for pneumonia in young children. More recent meta-analyzes of etiological data indicate a change in the profile of the pathogen, which increases the recognition that community-acquired pneumonia is caused by sequential or simultaneous interaction of more than one microorganism. Given the epidemiology of community-acquired pneumonia and long-term hospital stays, the study and synthesis of data on the diagnostic criteria for community-acquired pneumonia remains relevant. It is currently not possible to identify a single marker or clinical sign that can be used to distinguish bacterial from viral pneumonia. It is important to evaluate all indicators of objective, instrumental and laboratory examination. Based on literature data, cytokine status indicators can be used to prevent the development of complications from pneumonia, prescribe adequate therapy and determine the duration of treatment. There are many other biomarkers that have been linked to the severity of pneumonia in children. According to statistics, a study of children with COVID-19 showed that the blood of patients, especially those with severe disease, has high levels of proinflammatory cytokines, especially IL-6, which during infection may be a key cytokine that causes serious inflammation and acute damage to many organs and systems. In particular, such a biomarker is IL-6 - the only serum cytokine, the presence of which probably correlates with the severity of pneumonia. The relationship between serum IL-6 and IL-10 levels is an important diagnostic criterion for determining the severity of pneumonia in children on admission, which allows screening for the risk of complications and assessing the possibility of rapid recovery. The use of immune and inflammatory markers in children with pneumonia can potentially lead to the development of innovative methods for predicting complications of community-acquired pneumonia and determining the severity. In addition, it has been shown that serum IL-6 levels are significantly reduced in patients with pneumonia during the recovery period, which allows to evaluate the effectiveness of treatment. Procalcitonin is also an important indicator of the inflammatory process. There are conflicting data on the ability of procalcitonin to distinguish between bacterial and viral infections. Given these data, procalcitonin can be used as a diagnostic criterion for the presence of bacterial infection and the appropriateness of antibiotic therapy. Analysis of available scientific works on prevalence features of the clinic and diagnosis of pneumonia in children, showed that the issue of timely diagnosis and differential diagnosis of pneumonia in children is still relevant and requires further research.