A biopsy involves taking a piece of skin or tissue from the body to look at under a microscope. A doctor will see if the tissue contains cancer or other abnormal cells. The results of the biopsy can help determine the next best step in diagnosis or treatment.
How is a biopsy done?
A small amount of tissue is taken using a special tool. When the tissue is taken the patient may be given a numbing agent to prevent pain. Sometimes the patient is sedated.
For certain urological diseases, biopsies can be done on the
A biopsy of the prostate or kidney
Biopsies of the prostate or kidney are done with a special needle. The doctor uses ultrasound or a CT scan to guide the needle.
An endoscope (long tube with an attached light) is used for a bladder or ureteral biopsy. The endoscope is inserted through the urethra.
Source: Urology Care Foundation