Fig. 1From: 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 (right) An L-shaped incision is a transverse arc-shaped incision along the dermatoglyph at the distance of one to two transverse fingers above the supraclavicular notch, extending to the posterior margin of sternocleidomastoid, then up to the mastoid process. B (right) The low-collar extended incision is a transverse arc-shaped incision along the dermatoglyph at the distance of one to two transverse fingers above the supraclavicular notch, extending to the anterior edge of the trapezius muscleBack to article page