Introduction. A combination of two rare congenital lung diseases - congenital cystic-adenomatous malformation of the lower lobe of the left lung and intralobar sequestration of the lung- is an extremely rare pathology in medical practice.Material and methods. The article describes a case of successful treatment of an 8-year-old child with cystic-adenomatous transformation of the lower lobe of the left lung in combination with intralobar sequestration. A child with chronic pneumonia was prescribed CT of his chest organs with intravenous contrast enhancement. A combination of cystic adenomatous malformation with intralobar sequestration of the lung was revealed at this examination. The sequestration zone was supplied with blood via the artery from the thoracic aorta, and the wide vein went towards the opposite hemithorax and flowed into the azygos vein. The patient had a planned surgery: left-sided lateral thoracotomy, lower lobectomy with ligation of additional vessels.Results. The early postoperative period was uneventful. Next year, there were no exacerbations of pneumonia. The child considers himself healthy. The histological report No. 31568 - 31577 confirmed type II cystic adenomatous malformation with sequestration of the lung.Conclusion. Modern diagnostic tools allow to put a correct diagnosis at the preoperative stage. In the described case, possible intraoperative complications were avoided because surgeons knew specific blood supply in the diseased area before surgery.

Introduction. Inflammatory myofibroblastic tumor (IMT) is a rare volumetric neoplasm in the childhood which originates from the mesodermal tissue , and by the classification of soft tissue tumors refers to the tumors with intermediate biological potential.Purpose. To present a case of rare volumetric formation in the lungs and mediastinum in children.Material and methods. The publication presents three clinical observations of children with IMT. In all three boys (aged 6, 8 and 15), tumors were localized in the right hemithorax: lower lobe of the lung (two children), upper anterior mediastinum (one) without a reliable organ accessory.Results. There were no specific clinical symptoms of the disease. In two children, the volumetric formation was found accidentally: in one child, a rounded tumor above the liver was found during an ultrasound examination of the abdomen; in the other one, during chest X-ray prophylactic examination. Only in one case, the lung tumor caused respiratory failure during exercise due to the complete atelectasis of the lower lobe and emphysema of the middle lobe which was caused by the growth of the tumor from the parenchyma of the lower lobe into the lumen of the lower lobe and intermediate bronchi. There were no significant shifts in clinical and biochemical blood tests. Cancer markers were negative. Surgery was indicated because of the volume formation topography which was confirmed by the multispiral computed tomography with vascular contrast and fibrobronchoscopy. Surgical volume – thoracotomy, lobtumorectomy (1 child); thoracotomy, pulmonotomy, tumorectomy (1 child); thoracoscopy, removal of the mediastinal tumor (1 child). The most technically difficult was mobilization and removal of the mediastinal tumor when it was separated from the superior vena cava and in the chest aperture where it was intimately fused with the brachiocephalic vein. The postoperative period was without complications. All children recovered.Conclusion. IMT of the thoracic organs is not a rare case. It is not possible to reliably verify the nature of the tumor process in the preoperative period. Surgical treatment is radical and, in some cases, endovideotechnologies may be applied.