Aysun Uğuz

Prof. Dr. Aysun Uğuz


Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
12 December 2019 in Brazilian Journal of Otorhinolaryngology
Verified
Journal Article
Open access
SDSelman Dogantemur
Selman Dogantemur
SOSuleyman Ozdemir
Suleyman Ozdemir
AUAysun Uğuz
Aysun Uğuz
OSOzgur Surmelioglu
Ozgur Surmelioglu
MDMuhammed Dağkıran
Muhammed Dağkıran
UTUlku Tuncer
Ulku Tuncer
Human papilloma virus is an etiological risk factor for a subset of head and neck squamous cell carcinomas. HPV has been proven to be a powerful prognostic biomarker for oropharyngeal cancer, but its role in the larynx has not been explored in depth. The developmental mechanisms of laryngeal carcinomas are quite complex and controlled by various factors. Smoking and alcohol are most important risk factors. Recent studies indicate that HPV infection also plays an important role in larynx carcinomas. HPV related laryngeal carcinomas especially occur at the supraglottic region of larynx. We aimed to determine the frequency of HPV/protein16 positivity in patients with laryngeal carcinoma and association of HPV and/or p16 positivity with variables such as age, sex, smoking habits, tumor localization, lymph node metastasis, recurrence and survival in advanced stage laryngeal carcinoma in our study. This retrospective study included 90 patients with advanced laryngeal carcinoma. The Control group was 10 normal larynx mucosa specimens. The presence of HPV was investigated polyclonally by polymerase chain reaction, and protein16 with immunohistochemical method. In HPV positive cases, the presence of HPV types 16, 18 were evaluated by polymerase chain reaction. Demographic features of patients were noted. Patient survival and association with HPV/protein16 was determined. Polyclonal HPV positivity was detected in 11 (12.2%) of 90 cases. Out of these 11 cases, HPV 16 was positive in 6, HPV 18 in 4, and both HPV 16 and 18 were positive in 1. In 18 (20%) of the cases, p16 was positive. Six of the cases (6.6%) had both HPV and protein16 positivity. In cases where protein16 alone or HPV and protein16 were co-positive, alcohol use was less and the tumor was found more likely to be localized in the supraglottic area. These ratios were statistically significant. Supraglottic localization of tumor was determined to be increased in protein16 positive cases. The correlation between protein16 positivity and supraglottic area location was determined to be statistically significant (p = 0.011). 55.6% of protein16 positive cases was located in the supraglottic region, 33.3% was glottic and 11.1% was transglottic. Although life expectancy over 5 years were numerically higher in HPV and protein16 positive cases, this was not found to be statistically significant. There was no statistically significant relationship between HPV positivity and mean age, differentiation, smoking and alcohol use, tumor progression, lymph node metastasis, localization, recurrence, cause of mortality and treatment methods in our study. The mean follow-up period of our patients was 6.7 years. The close relationship between HPV and oropharyngeal squamous cell carcinoma could not be shown in larynx malignancy in many studies, including our study. Our findings support a limited role of HPV in laryngeal carcinogenesis. Protein16 is not a reliable surrogate for HPV status in laryngeal cancers and is not a predictor of laryngeal cancer survival. Supraglottic localization of tumor was determined to be increased in protein16 positive cases. The correlation between protein16 positivity and supraglottic area location was determined to be statistically significant. There is a need for more populated clinical trials, where neoplastic proliferation is better demonstrated and the accuracy of the results obtained is supported by different techniques.

1 March 2006 in BMC Ear, Nose and Throat Disorders
Verified
Journal Article
Open access
FCFikret Cetik
Fikret Cetik
DYDEMET YAZICI
DEMET YAZICI
AUAysun Uğuz
Aysun Uğuz
Background The metastasis of papillary thyroid carcinoma to the parapharyngeal space is rare and discussed in the English literature before. Encountering a parapharyngeal mass with cystic appearance on imaging, one should rule out thyroid malignancy as differential diagnosis. Case presentation The case presented here is a 22-year-old woman who was referred to our clinic with complaints of painless neck mass, dysphagia and hoarseness for two years. After radiologic and pathological examination, the mass thought to be relevant with the thyroid gland. Peroperatively, the tumor was found to originate from the superior pole of the right thyroid gland, with a narrow stalk, and extended following the neurovascular bundle to the lower part of the parapharyngeal space. The bulk was removed via transservical approach with total thyroidectomy. Conclusion The occurrence of the follicular variant of papillary thyroid carcinoma in the parapharyngeal space is extremely rare. The management of this rare case was discussed with the review of literature.

29 June 2022 in European Archives of Oto-Rhino-Laryngology
Verified
Journal Article
Closed access
PDF file
CECaglar Eker
Caglar Eker
OTOzgur Tarkan
Ozgur Tarkan
OSOzgur Surmelioglu
Ozgur Surmelioglu
MDMuhammed Dağkıran
Muhammed Dağkıran
IPIlda Tanrisever Pehlivan
Ilda Tanrisever Pehlivan
SOSuleyman Ozdemir
Suleyman Ozdemir

1 January 2016 in Turkish Journal of Pathology
Verified
Journal Article
Open access
TCTuba Canpolat
Tuba Canpolat
CECanan Ersoz
Canan Ersoz
AUAysun Uğuz
Aysun Uğuz
MVMehmet Ali Vardar
Mehmet Ali Vardar
AAAytekin Altintas
Aytekin Altintas
Malignant cells show increased glucose uptake in in vitro and in vivo studies. This uptake is mediated by glucose transporter proteins. GLUT-1 is the most common transporter protein, and its expression is reported to be increase in many human cancers. The aim of this study is to determine the GLUT-1 overexpression in benign, hyperplastic, and malignant endometrial tissues, to evaluate the usefulness of GLUT-1 expression in endometrial hyperplasia, and to determine its role in the neoplastic progression to endometrioid type adenocarcinoma. We also aimed to analyze prognostic clinical parameters, predict prognosis, and survival.

1 August 2018 in Journal of Pediatric Hematology/Oncology
Verified
Journal Article
Closed access
PDF file
ASAyse Senay Sasihuseyinoglu
Ayse Senay Sasihuseyinoglu
MYMustafa Yilmaz
Mustafa Yilmaz
DADerya U. Altintaş
Derya U. Altintaş
DDDilek Dogruel
Dilek Dogruel
MSMahir Serbes
Mahir Serbes
MKMete Kiroğlu
Mete Kiroğlu
Hyper-immunoglobulin E syndrome (HIES) is a rare primary immunodeficiency disease characterized by recurrent infections and elevated levels of serum immunoglobulin E, usually over 2000 IU/mL. Recurrent and chronic infection of the epidermis and squamous epithelium may also be a cause of squamous cell carcinoma (SCC). SCC is rare with HIES. A 17-year-old male patient who was diagnosed as HIES was admitted with purulent right ear discharge. The patient had a history of eczema starting from the age of 7 months and a history of recurrent middle ear infection starting from the age of 5. Biopsy specimens were taken from the lesion in the external auditory canal, and the lesion was reported as SCC. Patients with autosomal recessive HIES are at an increased risk for infections and malignancies. SCC should be considered in the differential diagnosis of the patients presenting with recurrent middle ear infections and immunodeficiency.

3 July 2025 in The European Research Journal
Verified
Journal Article
Open access
PDF file
HEHatice Elmas
Hatice Elmas
AUAysun Uğuz
Aysun Uğuz
AŞAbdullah Fahri Şahin
Abdullah Fahri Şahin
FTFahriye Seçil Tecellioğlu
Fahriye Seçil Tecellioğlu
PWPD Dr. med. Lutz Welker
PD Dr. med. Lutz Welker
Lung cancer is a highly heterogeneous disease that presents significant challenges in accurate diagnosis and classification due to its diverse histological and molecular characteristics. Traditional diagnostic methods, while valuable, are often limited by invasiveness, subjectivity, and an inability to fully capture tumor complexity. Recent advancements in artificial intelligence (AI), machine learning, and radiomics have transformed the field, offering enhanced precision, efficiency, and objectivity in lung cancer classification. These technologies enable detailed analyses of imaging data, histopathological findings, and molecular profiles, facilitating improved subtype identification, outcome prediction, and personalized treatment strategies. Cytopathology remains a cornerstone of lung cancer diagnostics, particularly for small biopsies and cytological samples, which are often the only materials available in advanced stages. The integration of AI-driven methods into cytopathology and radiomics workflows has shown substantial potential to overcome the limitations of traditional approaches, reduce interobserver variability, and accelerate the diagnostic process. This review underscores the transformative role of AI and radiomics in lung cancer management, highlighting their synergy in advancing precision oncology. As ongoing research continues to refine these methodologies, the future of lung cancer care is poised for significant advancements, offering improved diagnostic accuracy, personalized therapies, and better patient outcomes.