A kidney biopsy, which involves taking a small sample of kidney tissue for examination under a microscope, can be a crucial diagnostic tool for identifying the cause of kidney disease. However, there are several synonyms for this procedure, including renal biopsy, kidney needle biopsy, and nephroscopic biopsy. Renal biopsy is a common term used by healthcare professionals to describe the procedure, while kidney needle biopsy refers to the insertion of a thin needle through the skin and into the kidney to obtain the tissue sample. Nephroscopic biopsy is a less common term that refers to the use of a small camera to guide the biopsy needle to a specific location within the kidney.