Genotype Distribution and Prevalence of Human Papillomavirus in Head and Neck Cancer Samples from Istanbul, Turkey.

Human papillomavirus (HPV)-associated tumors account for a significant proportion of head and neck squamous cell carcinomas (HNSCC) in developed countries. In recent years, there has been a rise of HPV infections associated with HNSCC, especially HPV16, which is the most commonly detected type in oral and oropharyngeal cancers. To investigate the frequency of HPV-driven HNSCC among patients living in Turkey, HPV DNA positivity and p16INK4A expression were assessed in primary tumor biopsies (n = 106). Eighteen out of one hundred and six (19%) HNSCC tumors showed p16INK4A overexpression, and 26/106 cases (24.5%) were positive for HPV DNA. Sixteen out of twenty-six samples were positive for both HPV DNA and p16INK4A staining. HPV16 could be isolated from 22/26 samples (84.6%) and was found to be the most frequently detected HPV type. This study represents the largest cohort of Turkish patients with HNSCC characterized according to HPV status and p16INK4A expression. Our data suggest that HPV16 infection, along with smoking, contribute to the development of HNSCC.

Giant Cell Angiofibroma in Sublingual Area: A Case Report and Review of Literature.

We present a case of Giant Cell-Rich Solitary Fibrous Tumor also known as Giant cell angiofibroma, occuring in sublingual region, to our knowledge, which has never been reported before. Forty-nine years old female who presented with painless, slowly growing mass in the sublingual region underwent excisional surgery and was diagnosed with giant cell-rich solitary fibrous tumor previously referred to as giant cell angiofibroma. In our report, we aimed to report the unusual localization of this rare tumor, examine the new nomenclature and classification of giant cell-rich solitary sibrous tumor or giant cell angiofibroma and review the literature regarding head and neck localization of this tumor.

The role of fine needle aspiration biopsy in deep lobe parotid tumors: Comparison of preoperative cytology and postoperative histopathologic results.

PURPOSE: Major salivary gland tumors constitute almost 3% of head and neck tumors. Tumors located exclusively in the deep lobe are not common and 20% of parotid gland tumors originate from deep lobe under the branches of the facial nerve. Accuracy of fine needle aspiration biopsy (FNAB) procedure in salivary gland tumors have been studied extensively, however there isn't any data regarding usefulness of FNAB in tumors located exclusively in deep lobe of parotid gland. In this study we aimed to assess the use of FNAB in deep lobe parotid tumors. MATERIALS AND METHODS: We retrospectively analyzed 51 patients with deep lobe parotid tumors who underwent surgery in our clinic between January 2013-December 2018. Characteristics of patients were recorded. Preoperative FNAB results and postoperative final histopathologic diagnosis were compared. Statistical analysis was performed using SPSS 24.0 was used for statistical analysis. RESULTS: The number of patients that met the inclusion criteria was 51. The mean age of patients were 49.2(14-86). In 40 (78.4) of the patients, tumor was reported as benign and in 11 (21.6) patients FNAB diagnosis was suspicious for malignancy, malignant or non-diagnostic. In final histopathologic diagnosis, 42 of the tumors were benign and 9 were malignant. The most common benign tumor type was pleomorphic adenoma which constitutes 27 of the cases (52.9%). Regarding detection of malignant disease, the sensitivity of FNAB was 90.4%, specificity was 77.7%, positive predictive value was 95%, negative predictive value was 63.6%. There was a substantial agreement between FNAB and final histopathologic diagnosis(kappa = 0,628). CONCLUSIONS: FNAB is a safe and reliable tool to evaluate deep lobe parotid tumors. It is an important part of preoperative surgical planning and can help the surgeon in patient counseling. FNAB with ultrasound guidance is recommended for deep lobe tumors.

Clinical approach to pediatric neck masses: Retrospective analysis of 98 cases.

OBJECTIVE: Pediatric neck masses (PNMs) are a frequently encountered problem in otorhinolaryngology practice. The clinical approach to cervical masses in childhood varies from that of adults. Due to differences among clinicians in the assessment of a PNM, studies investigating this subject are significant contributions to the literature. For this reason, a review was conducted of pediatric PNM cases with an open biopsy (incisional/excisional) and a histopathological diagnosis. METHODS: The hospital records of 98 (34 girls, 64 boys) pediatric patients aged between 8.5 months and 16 years were reviewed. The history, physical examination findings, blood tests, medical treatments, imaging reports, and the pathology and/or microbiology results of the patients were recorded and evaluated. The cervical masses were categorized according to the etiology, imaging features, size, and location. RESULTS: Surgical biopsy was planned due to the suspicion of malignancy, typical clinical presentation or location, or size greater than 20 mm despite antibiotherapy for 2 to 6 weeks. Excisional biopsy (91.8%) was the first choice for histopathological sampling. Infectious masses were observed most commonly, followed by congenital and neoplastic masses, at a rate of 49%, 27.6%, and 23.4%, respectively. Hodgkin lymphoma was the most frequent type of malignancy (39.1%). Thyroglossal and branchial cysts constituted 74.1% of congenital masses. Sixty-seven percent of all masses were solid, and the lateral levels of the neck were the most affected locations (44.9%). CONCLUSION: In most cases, the diagnosis can be made with a detailed history and physical examination. In the presence of nonspecific findings, blood tests, imaging, and histopathological sampling are required. Ultrasound should be the first preference for imaging, and excisional biopsy is suggested rather than fine needle aspiration biopsy for histopathological sampling in pediatric neck masses.