Article: Head and neck cancer causes investigated further.(Opinion)

Head and neck squamous cell carcinoma can be caused by excessive smoking and alcohol consumption or by infection with human papillomavirus type 16 (HPV16); however, alcohol and tobacco use in a patient infected with HPV16 does not further increase the patient's risk of contracting head or neck cancer, according to a November 27, 2007, news release from Brown University, Providence, Rhode Island. Researchers speculate, therefore, that cancer of the head and neck arise from two distinct causes and actually may represent two distinct classes of cancer, which may require varied prevention and treatment strategies.

Researchers studied 485 patients with head and neck ...

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