thoracoscopy

Definition of thoracoscopy

thoracoscopy

(THOR-uh-KOS-koh-pee)
Examination of the inside of the chest, using a thoracoscope. A thoracoscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue to be checked under a microscope for signs of disease.

Source: NCI Dictionary of Cancer Terms