Port-site metastasis as a primary complication following retroperitoneal laparoscopic radical resection of renal pelvis carcinoma or nephron-sparing surgery: A report of three cases and review of the literature.

The article presents several case studies to identify the cause and prognosis of the occurrence of port-site metastasis to laparoscopic radical resection of renal pelvis carcinoma and nephron-sparing surgery. It mentions the case report of 71-year-old male patient and 47-year-old female patient with renal pelvis carcinoma and 68-year-old male patient with renal carcinoma that were diagnosed and treated with carcinoma.