Mediastinoscopy with biopsy is a procedure in which a lighted instrument (mediastinoscope) is inserted in the space in the chest between the lungs (mediastinum). Tissue is taken (biopsy) from any unusual growth or lymph nodes.
How the Test is Performed
This procedure is done in the hospital. You will be given general anesthesia so that you are asleep and do not feel any pain. A tube (endotracheal tube) is placed in your nose or mouth to help you breathe.
A small surgical cut is made just above the breastbone. A device called a mediastinoscope is inserted through this cut and gently passed into the mid-part of the chest.
Tissue samples are taken of the lymph nodes around the airways. The scope is then removed and the surgical cut is closed with stitches.
A chest x-ray will often be taken at the end of the procedure.
The procedure takes about 60 to 90 minutes.