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(A) Skin landmarks for modified radical neck dissection (MRND); (B) an unfolded needle with a polydioxanone suture (PDS) penetrates the lower border of and encircles the sternocleidomastoid (SCM) muscle; (C) the polydioxanone suture (PDS) encircling the SCM muscle exits through the skin on the lateral side; (D) the SCM muscle is pulled laterally using the external PDS.
