[Endoscopic extraction of a foreign body from the right kidney].

Foreign bodies in the upper urinary tract are relatively rare. Publications on this topic primarily consist of clinical case reports describing the removal of foreign bodies discovered after surgical interventions. However, in modern combat trauma care, the relevance of this issue has increased. In cases of penetrating abdominal or lumbar injuries involving the kidney, the penetrating projectile may remain in the renal parenchyma and subsequently migrate or initially lodge in the pelvicalyceal system. In the vast majority of cases, patients present with multiple (18.6%) or combined (71.2%) injuries, making minimally invasive surgical approaches the preferred method for foreign body removal. Modern technologies allow for the use of percutaneous and/or transurethral techniques in such situations. In this context, we present a clinical case of endoscopic removal of a fragment from the pelvicalyceal system of the right kidney.