Which procedure involves sampling mediastinal lymph nodes by an incision 3-4 cm above the sternal notch, dissecting through the pre-tracheal fascia?

Which procedure involves sampling mediastinal lymph nodes by an incision 3-4 cm above the sternal notch, dissecting through the pre-tracheal fascia?

• A. Mediastinoscopy
• B. Chamberlain procedure
• C. Pleural biopsy
• D. Bronchoscopy

Answer: (A)

Sampling mediastinal lymph nodes through a cervical route is done with a mediastinoscopy. In this procedure a small incision is made about 3–4 cm above the sternal notch, and the surgeon dissects through the pretracheal fascia to enter the superior mediastinum. This pathway allows direct access to key lymph node stations adjacent to the trachea and great vessels for biopsy, which is crucial for staging lung cancer and evaluating mediastinal disease. The approach is chosen specifically for its ability to reach these nodes with relatively low invasiveness compared with open chest procedures. The other options refer to different techniques: a left anterior mediastinotomy (Chamberlain procedure) accesses different mediastinal areas via a left parasternal route; pleural biopsy targets the pleural lining rather than mediastinal nodes; bronchoscopy samples within the airways or via endobronchial routes and does not involve an incision above the sternal notch through pretracheal fascia.

Sampling mediastinal lymph nodes through a cervical route is done with a mediastinoscopy. In this procedure a small incision is made about 3–4 cm above the sternal notch, and the surgeon dissects through the pretracheal fascia to enter the superior mediastinum. This pathway allows direct access to key lymph node stations adjacent to the trachea and great vessels for biopsy, which is crucial for staging lung cancer and evaluating mediastinal disease. The approach is chosen specifically for its ability to reach these nodes with relatively low invasiveness compared with open chest procedures.

The other options refer to different techniques: a left anterior mediastinotomy (Chamberlain procedure) accesses different mediastinal areas via a left parasternal route; pleural biopsy targets the pleural lining rather than mediastinal nodes; bronchoscopy samples within the airways or via endobronchial routes and does not involve an incision above the sternal notch through pretracheal fascia.