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Squamous cell carcinoma of unknown primary origin in the head and neck is encountered as a recurring clinical problem in head and neck cancer clinics, affecting 3% to 25% of patients. This article describes the clinical presentation, appropriate evaluation, and treatment strategies for this important subgroup. Treatment--best carried out with multidisciplinary teams of specialists experienced in the care of head and neck cancer patients--is curative for most of these patients.
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Galer et al. (2008) studied this question.
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