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Гемангиома сердца относится к редким доброкачественным опухолям, которые чаще локализуются в предсердии или в желудочке и гораздо реже в стволе легочной артерии. В статье представлено клиническое наблюдение успешного хирургического лечения больного с гемангиомой ствола легочной артерии с распространением на ее клапан и левую легочную артерию.Финансирование. Исследование не имело спонсорской поддержки.Конфликт интересов. Авторы заявляют об отсутствии конфликта интересов.

Background. Diagnostic imaging of retroperitoneal neoplasms that arise within the retroperitoneal space but outside the major organs in this space is challenging due to the presence of large spaces filled with fatty tissue that allows the tumor to develop asymptomatically for a long time. In addition, these tumors are rare, and radiological semiotics and clinical manifestations can be nonspecific.Case presentation. We present the rare clinical case of a 53-year-old patient with a large retroperitoneal mass detected by contrast-enhanced computed tomography. Additional imaging diagnostic procedures as well as histological findings helped to make a definitive diagnosis: extraorganic retroperitoneal leiomyosarcoma arising from the muscular wall of the splenic vein.Conclusion. The retrospective analysis of CT data showed that the tumor-induced marginal defect in the contrasted splenic vein may indicate the tumor arising from the muscular wall of the vessel. The final diagnosis was made on the basis of a morphological study.

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The described clinical case shows the challenges in the differential diagnosis of primary diffuse large B-cell lymphoma of the lung. It has been shown that the diagnosis can be made only by a morphological examination of a biopsy specimen, and the specimen should be representative and allow for full histological and immunohistochemical testing. A correct diagnostic algorithm, an interdisciplinary approach, the use of new technologies, particularly radiation imaging methods, to reliably determine the primary localization and spread of the pathological process, biopsies for the morphological confirmation shorten the time to diagnosis. A quick diagnosis improves the treatment outcomes and affects the quality of life and life expectancy of patients.

Adrenocortical cancer (ACC) – a neoplasm of the adrenal cortex, which is rare, in 0.02–0.06% of cases. It is characterized by various clinical manifestations in the form of hypercorticism of varying severity and unfavorable prognosis. Typically, a tumor in the form of a node, often with signs of infiltration growth. Some tumors are formed by light and dark cells, there is often significant cellular polymorphism. Malignant tumors of the adrenal cortex have a pronounced tendency to hematogenous metastasis, usually in the lungs, bones and other organs. The article presents a rare clinical case of metastatic lung injury, identified 22 years after the removal of the adrenal malignant tumor (AKP).