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Some head and neck cancers, and in particular oropharyngeal cancer, are caused by the human papillomavirus (HPV), [1] [62] and 70% of all head and neck cancer cases are related to HPV. [62] Risk factors for HPV-positive oropharyngeal cancer include multiple sexual partners, anal and oral sex and a weak immune system.
HPV+OPC presents in one of four ways: as an asymptomatic abnormality in the mouth found by the patient or a health professional such as a dentist; with local symptoms such as pain or infection at the site of the tumor; with difficulties of speech, swallowing, and/or breathing; or as a swelling in the neck (if the cancer has spread to lymph nodes).
The fourth edition of WHO' s classification of head and neck tumors subdivides squamous cell carcinoma of the tonsil into two types: HPV positive or negative. HPV positive tumors arise from the deep lymphoid tissue of the tonsillar crypts and are non-keratinizing. On the other hand HPV negative tumors develop from the tonsillar surface ...
(Reuters) -Moderna shares rose 8% to a three-month high on Tuesday after the company's individualized cancer vaccine developed with Merck showed positive response in an early-stage trial in ...
Oropharyngeal cancer, [1] [2] [3] also known as oropharyngeal squamous cell carcinoma and tonsil cancer, [1] is a disease in which abnormal cells with the potential to both grow locally and spread to other parts of the body are found in the oral cavity, in the tissue of the part of the throat that includes the base of the tongue, the tonsils, the soft palate, and the walls of the pharynx.
In the United States, the number of newly diagnosed, HPV-associated head and neck cancers has surpassed that of cervical cancer cases. [69] The rate of such cancers has increased from an estimated 0.8 cases per 100,000 people in 1988 [ 76 ] to 4.5 per 100,000 in 2012, [ 41 ] and, as of 2021, the rate has continued to increase. [ 77 ]
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