Laparoscopic partial nephrectomy is a surgical procedure performed to remove a portion of the kidney while preserving the remaining healthy kidney tissue. It is typically done to treat kidney tumors or renal cell carcinoma (a type of kidney cancer) that is limited to a specific area of the kidney.

During the procedure, several small incisions are made in the abdomen, and a laparoscope (a thin, flexible tube with a camera) and other surgical instruments are inserted through these incisions. The surgeon uses the laparoscope to visualize the kidney and surrounding structures on a monitor, guiding the surgical instruments.

The surgeon carefully identifies and isolates the tumor within the kidney and then proceeds to remove only the affected portion, sparing the healthy kidney tissue. The blood vessels supplying the tumor are typically clamped and divided, and the tumor is excised or cut out. The remaining healthy kidney tissue is then carefully sutured back together to ensure proper functioning.