For more information, U.S. residents may call the National Cancer Institute's (NCI's) Cancer Information Service toll-free at 1-800-4-CANCER (1-800-422-6237) Monday through Friday from 8:00 a.m. to 8:00 p.m., Eastern Time. A trained Cancer Information Specialist is available to answer your questions.
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Radiation therapy followed by surgery to remove the lymph nodes.
Surgery to remove the lymph nodes, with or without radiation therapy.
A clinical trial of new types of treatment.
See the PDQ summary on Metastatic Squamous Neck Cancer with Occult Primary Treatment for more information.
Poorly Differentiated Carcinomas
Cancer cells that are poorly differentiated look very different from normal cells. The type of cell they came from is not known. Treatment of poorly differentiated carcinoma of unknown primary, including tumors in the neuroendocrine system (the part of the brain that controls hormone -producing glands throughout the body) may include the following: