Cytopathology in focus: Direct HPV testing in FNAs from cervical lymph node metastases
May 2020—According to a Centers for Disease Control and Prevention study from 2008 to 2012, there are about 16,000 cases of HPV-positive oropharyngeal squamous cell carcinoma per year in the United States. These carcinomas tend to present with small primary lesion and early nodal metastases as an initial manifestation of the disease. Furthermore, carcinoma of unknown primary presenting as a cystic metastasis in the head and neck has been linked frequently to oropharyngeal squamous cell carcinomas, mainly of palatine tonsils and base of the tongue.