The use of ultrasound in the search for the primary site of unknown primary head and neck squamous cell cancers.


BACKGROUND Although human papillomavirus detection in cervical lymph nodes of head and neck squamous cell cancers (HNSCC) of unknown primary site (UP) is indicative of a primary tumor of the oropharynx (OP), localization can remain elusive. Therefore, we investigated ultrasonography (US) for the identification of the primary tumor. METHODS Eligible cases… (More)
DOI: 10.1016/j.oraloncology.2014.03.015

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