ObjectiveLaryngeal cancer is the most common type of cancer in the head and neck. Human papillomavirus (HPV) represents a group of >150 related viruses. Infection with certain types of HPV can cause some types of cancer. This study aimed to evaluate the sociodemographic and histopathologic characters of squamous cell carcinoma of the larynx and its relationship to HPV subtype 16 (HPV-16).Study designCross-sectional.SettingTertiary university hospitals at 5 districts in Egypt (Minia, Cairo, Giza, Qaluobia, and Bani Seuif).Subjects and MethodsThis cross-sectional study was conducted on 50 adult patients with laryngeal cancer who were admitted at 5 tertiary care hospitals in Egypt from January 2014 through December 2014. All patients were subjected to a comprehensive preoperative assessment, histopathologic assessments of tumor biopsies, and immunohistochemical staining for HPV-16.ResultsHPV-16 immunostaining was positive in 9 patients (18%). A significant correlation between HPV-16 immunoreactivity and tumor grade (P < .001) was detected, with no significant correlation between HPV-16 immunoreactivity and other clinical and pathologic variables.ConclusionThe frequency of HPV-16 in laryngeal carcinoma is 18%, and there is significant correlation between HPV-16 and tumor grade.

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‫الخالصة‬ ‫العوامل‬ ‫بعض‬ ‫تأثير‬ ‫دراسة‬ ‫نتائج‬ ‫اظهرت‬ ‫و‬ ‫البيئية‬ ‫التفما‬ ‫ممن‬ ‫لنموعي‬ ‫الموسممي‬ ‫النشاط‬ ‫الكمثمر‬ ‫أوراق‬ Dysaphis reaumuri (M.) ‫و‬ (Boy) Dysaphis pyri ‫نموعي‬ ‫اعداد‬ ‫متوسط‬ ‫في‬ ‫معنوية‬ ‫فروقات‬ ‫وجود‬ ‫وصن‬ ‫للموسم‬ ‫تبعا‬ ‫المن‬ ‫الكمثر‬ ‫متوسط‬ ‫اعلى‬ ‫بلغ‬ ‫اذ‬ ‫واالتجاه‬ ‫ألعداد‬ ‫الممن‬ ‫نوعي‬ 82.22 ‫حشمرة‬ / ‫فمي‬ ‫ورقمة‬ ‫الصن‬ ‫على‬ ‫الشرق‬ ‫جهة‬ ‫خاتوني‬ ‫للموسم‬ 8101 ‫الممن‬ ‫العمداد‬ ‫العام‬ ‫المتوسط‬ ‫في‬ ‫معنوية‬ ‫فروقات‬ ‫هناك‬ ‫وكانت‬ ‫بلغت‬ ‫اذ‬ ‫لالتجاه‬ ‫تبعا‬ 80.02 ‫و‬ 4.05 ‫و‬ 3.60 ‫و‬ 08.2 ‫حشرة‬ \ ‫والغربم‬ ‫الشمرقي‬ ‫لالتجماه‬ ‫ورقة‬ ‫والجنموبي‬ ‫والشممالي‬ ‫ي‬ ‫التوالي‬ ‫على‬ ‫الحيويمة‬ ‫وريمر‬ ‫الحيويمة‬ ‫والعواممل‬ ‫المن‬ ‫اعداد‬ ‫متوسط‬ ‫بين‬ ‫للعالقة‬ ‫االنحدار‬ ‫معادالت‬ ‫اظهرت‬ ‫كما‬ . ‫وكان‬ ‫المن‬ ‫لنوعي‬ ‫الموسمي‬ ‫النشاط‬ ‫في‬ ‫العوامل‬ ‫لهذه‬ ‫واضح‬ ‫تأثير‬ ‫وجود‬ ‫للحرارةأعلى‬ ‫متوسمط‬ ‫فمي‬ ‫تمأثير‬ ‫نسمبة‬ ‫مأثير‬ ‫التم‬ ‫مغ‬ ‫بلم‬ ‫أذ‬ ‫من‬ ‫المم‬ ‫موعي‬ ‫نم‬ ‫مداد‬ ‫اعم‬ 23 ٪ ‫مأثير‬ ‫التم‬ ‫مبة‬ ‫نسم‬ ‫مت‬ ‫بلغم‬ ‫ما‬ ‫فيمم‬ ‫ماح‬ ‫الريم‬ ‫و‬ ‫مار‬ ‫األمطم‬ ‫و‬ ‫مة‬ ‫للرطوبم‬ 56.2 ‫و‬ 35.0 ‫و‬ 52.2 ٪ ‫للموسم‬ 8112 ‫بلغت‬ ‫بينما‬ 38.6 ‫و‬ 2.06 ‫و‬ 21.0 ‫و‬ 41.0 ‫للموسم‬ 8101 ‫التوالي.‬ ‫على‬ ‫ال‬ ‫كلمات‬ ‫ال‬ ‫دالة:‬ ، ‫الكمثر‬ ‫حساسية،‬ Dyasphis pyri, Dysaphis reaumuri