Abstract:

The minimally invasive MALND differs from the usually laparoscopic operation. The narrow space, complicated anatomic layers, lots of blood vessels and nerves add much difficulty to the operation. Moreover, the elaborate anatomy in axilla becomes more clear by the help of the magnifying function of endoscopic system. Some anatomic structures which are difficult to be realized in conventional axillary lymph node dissection uncover under the endoscopic view. The routes and features under endoscopy of some anatomic structures such as intercostobrachial nerve, axillary vein, subscapular vessels, thoracodorsal nerve and vessels, lymphatic drainage channels, thoracic epigastric vein, long thoracic nerve, lateral thoracic arteries, axillary vein segment behind minor pectoralis and medial thoracic nerve in the space between major and minor pectoralis are described in detail.

Key words: breast neoplasm, endoscopy, operation, anatomy