Fig. 2From: Patterns of lymph node metastasis in level IIB and contralateral level VI for papillary thyroid carcinoma with pN1b and safety of low collar extended incision for neck dissection in level IIA Anatomical display after dissection with low-collar extended incision. The white arrow points to the posterior belly of the digastric muscle. The blue arrow points to the accessory nerve. B (right) The lateral cervical lymph nodes were divided into IIA, IIB, III, IV, and VBack to article page