What is a Stereotactic Biopsy?
A stereotactic biopsy is a procedure used to diagnose lesions and other abnormalities found in MRIs and CAT scans. To perform the procedure, your doctor will use your scan to map out the best way to remove tissue from areas of suspicion so he can determine whether they are malignant or benign.
Why is Stereotactic Biopsy Needed?
While CAT scans and MRIs are excellent at pinpointing abnormalities in your brain or other internal organs, they can’t tell your doctor if they are cancerous. A stereotactic biopsy allows your doctor to precisely target your lesion so he can safely extract a sample and diagnose the tissue.
Two days before the procedure, you will need to get an MRI or CAT scan of the affected area. Your doctor will use this scan as a map to locate the lesion. Then he will drill a tiny hole in your skull where he can insert the needle. He will use this needle to extract cells from this lesion. Once the procedure is complete, your doctor will use a microscope to examine these cells and make a diagnosis.
Your doctor will walk you through your aftercare following the procedure, but typically you will be monitored for a few hours after the procedure. In some cases, you may have to stay overnight, depending on your underlying condition. However, in many cases, you will be able to resume regular activity within a few days.