Investigation of the mediastinum by means of an endoscope inserted through an incision in the neck. Mediastinoscopy is used mainly to perform a biopsy of a lymph node. The sample is removed by tiny blades on the endoscope.
n. examination of the *mediastinum, usually by means of an endoscope inserted through a small incision in the neck region. It can be used to assess the spread of intrathoracic tumours and for lymph node biopsy.
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