(Cervical Mediastinoscopy; Cervical Mediastinal Exploration; CME)
How to Say It: Mee-dee-ah-stine-OS-scoh-pee
by Amy Scholten, MPH
A mediastinoscopy is surgery to view the space between the lungs (mediastinum).
Reasons for Procedure
This is done to examine the lungs and chest. A biopsy may be taken to check for diseases, such as:
It is also done to find out if lung cancer has spread.
Problems are rare, but all procedures have some risk. The doctor will go over some problems that could happen, such as:
Things that may raise the risk of problems are:
What to Expect
Prior to Procedure
The care team may meet with you to talk about:
The doctor will give you general anesthesia. You will be asleep.
Description of the Procedure
A small incision will be made in the front of the lower neck. A small tube with a light (mediastinoscope) will be inserted. It will let the doctor see the space between the lungs and chest. Tissue samples may be taken from the lungs, lymph nodes, or other parts of the chest. The tube will be removed. The incision will be closed with stitches. A bandage will be placed over the site.
Immediately After the Procedure
Right after the procedure, the staff may give you pain medicines. A chest x-ray may be taken to check for bleeding or air inside your chest space.
The tissue samples will be sent to the laboratory for testing.
How Long Will It Take?
It will take 30 minutes to 2 hours.
Will It Hurt?
Pain is common in the first few days. Medicine and home care can help.
Average Hospital Stay
The usual length of stay is up to 24 hours. If you have problems, you may need to stay longer.
At the Hospital
Right after the procedure, the staff may give you pain medicines.
During your stay, the hospital staff will take steps to lower your risk of infection, such as:
There are also steps you can take to lower your risk of infection, such as:
It will take a few weeks for the incision to heal. Physical activity may be limited during this time. You may need to delay your return to work.
Call Your Doctor
Call your doctor if you are not getting better or you have:
If you think you have an emergency, call for medical help right away.
Mediastinoscopy. Harvard Health Publications website. Available at:
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Accessed January 15, 2021.
Onat S, Ates G. The role of mediastinoscopy in the diagnosis of non-lung cancer diseases. Ther Clin Risk Manag. 2017; 13: 939–943.
Sarcoidosis in adults. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/sarcoidosis-in-adults. Accessed January 15, 2021.
Last reviewed February 2020 by EBSCO Medical Review Board Marcin Chwistek, MD
Last Updated: 1/15/2021
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