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NCI Dictionary of Cancer Terms

Chamberlain procedure  listen  (CHAYM-ber-len proh-SEE-jer)

  A procedure in which a tube is inserted into the chest to view the tissues and organs in the area between the lungs and between the breastbone and heart. The tube is inserted through an incision next to the breastbone. This procedure is usually used to get a tissue sample from the lymph nodes on the left side of the chest. Also called anterior mediastinotomy.

Mediastinoscopy; shows mediastinoscope with light and lens inserted into
the chest through an incision above the breastbone. Drawing shows right
and left lungs, trachea, and lymph nodes. Inset shows anterior
mediastinotomy (Chamberlain procedure) with incision beside the