p16 status of oropharyngeal and oral cavity squamous cell carcinomas: A single institution experience (original) (raw)

Srpski arhiv za celokupno lekarstvo

Introduction/Objective. New World Health Organization Classification of Head and Neck Tumors from 2017 has introduced significant changes, mainly considering tumors in the oropharyngeal region. New entities of HPV-positive and -negative squamous cell carcinomas have been acknowledged, not only based on the presence of an active viral infection and different tumor markers expression, but also because of their different histopathology, staging assessment, and prognosis. A retrospective study has been conducted, in order to determine p16 positivity in squamous cell carcinomas in oropharynx and in the oral cavity, and to see whether they differ in sex and age distribution. Methods. The presence of viral infection was verified based on p16 immunochemistry staining, p16 being the surrogate marker for HPV infection. A total of 177 cases of squamous cell carcinomas in the oropharynx and the oral cavity, found in the archives of the Histopathology Laboratory of the Clinic for Otorhinolaryngo...

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