Multimodal treatment of oligometastatic cancer of ectopic intrathoracic kidney with Bochdalek’s hernia: сlinical observation and literature review

In 2023 in Russia, 26,385 new cases of kidney cancer were registered. At diagnosis, per various estimations, up to 30 % of patients have distant metastases of renal cell carcinoma. Surgical treatment is considered the method of choice in patients with renal cell carcinoma with solitary (2) metastases of any location which can be resected simultaneously or sequentially with the primary tumor. Intrathoracic kidney is observed in less than 5 % of ectopic kidney cases. In literature, only individual cases of treatment of patients with diagnosed cancer of ectopic intrathoracic kidney with Bochdalek’s hernia are described. The article presents a clinical observation of treatment of a patient with oligometastatic cancer of ectopic intrathoracic left kidney: radical surgical treatment with simultaneous reconstruction of diaphragmatic hernia and subsequent adjuvant therapy with PD-1 (programmed cell death 1 receptor) inhibitor.