الفهرس 
Introduction:Only 14 pages are availabe for public view
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Abstract
Squamous cell carcinoma of the larynx is one of the most curable cancers in the head and neck if the precise evaluation of the primary lesion and neck is performed and treatment is planned properly. The presence of neck metastases from laryngeal carcinoma significantly reduces the probability of regional control and survival. The extent of neck dissection in laryngeal cancer surgery is still a controversial matter. The aim of this current study is to show topography and levels that are at proper risk of neck metastases in cancer of different sites of the larynx, to put new strategy of neck dissection in the management of the neck in laryngeal cancer according to the results of the study. We found that the neck levels that are at proper risk of neck metastases in cancer larynx are levels IIA, III, IVA and VI. So, we concluded that no need for dissection of level I, level IIB, level IVB, level V and level VII in the management of the neck in laryngeal cancer as the incidence of neck metastases at these levels are rare and low according to the results of the study unless the neck metastases are detected clinically or radiologically by CT neck with contrast at these levels. selective and limited neck dissection are effective onclogically in N0 neck in cancer larynx and the levels dissected should be the levels that are at proper risk for metastases according to the histological type, grade, the site and T stage of the primary tumor in the larynx. In N + neck {clinical or radiological}, the neck dissection side, type, levels dissected and preservation or removal of non-lymphatic structures and extension of dissection should be tailored according to the histological type, histological grade, site and T stage of the primary tumor [clinico-radiological] and evaluation of the neck metastases [levels] and N stage {clinically and radiologically by CT}. Key words, Cancer larynx, Neck metastases, Neck levels