All of the following are indication for adjuvant radiotherapy in head neck cancers except:-: (A) Multiple lymph node disease, (B) Extranodal involvement, (C) Lymphovascular invasion, (D) Lymph node >3cm
Answer is D. Lymph node >3cm is not an indication for adjuvant radiotherapy in head neck cancers. Indications for postoperative include:- -positive margins -invasion of the soft tissues of the neck -extranodal involvement - perineural invasion, and -more than 5 mm of subglottic invasion.