 The anterior border of the sternocleidomastoid was identified and dissection was carried out lateral to the esophagus to trachea as well as medial to the carotid sheath in the sternocleidomastoid muscle. 
The anterior border of the sternocleidomastoid was identified and dissection was carried out lateral to the esophagus to trachea as well as medial to the carotid sheath in the sternocleidomastoid muscle .