AbstractThe various types of neck dissections are described. The indications for each type of neck dissection are discussed for patients with necks staged No, N +, for the patient with an unknown primary and for the patient whose neck dissection is in conjunction with radiation. The technical aspects of modified neck dissections are addressed but not in great detail. The indications for the use of postoperative radiation are emphasized. The nodal groups at risk for metastases from various primary sites are identified and a terminology for neck dissection is suggested.