Özgecan Gündoğar

ORCID: 0000-0003-3075-6063
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Research Areas
  • Genetic factors in colorectal cancer
  • Intraperitoneal and Appendiceal Malignancies
  • Sarcoma Diagnosis and Treatment
  • Ovarian cancer diagnosis and treatment
  • Bladder and Urothelial Cancer Treatments
  • Cancer and Skin Lesions
  • Appendicitis Diagnosis and Management
  • Urinary and Genital Oncology Studies
  • Breast Cancer Treatment Studies
  • Neuroendocrine Tumor Research Advances
  • IgG4-Related and Inflammatory Diseases
  • Bone Tumor Diagnosis and Treatments
  • Glycosylation and Glycoproteins Research
  • Inflammatory Bowel Disease
  • Dupuytren's Contracture and Treatments
  • Parathyroid Disorders and Treatments
  • Galectins and Cancer Biology
  • Dental materials and restorations
  • Wnt/β-catenin signaling in development and cancer
  • Soft tissue tumors and treatment
  • Diagnosis and treatment of tuberculosis
  • Brain Metastases and Treatment
  • Neuroblastoma Research and Treatments
  • Sarcoidosis and Beryllium Toxicity Research
  • Soft tissue tumor case studies

Sağlık Bilimleri Üniversitesi
2018-2025

University of Health Science
2025

Taksim German Hospital
2020

University of Health Sciences
2020

Gaziosmanpaşa Taksim Eğitim ve Araştırma Hastanesi
2017-2018

Taksim Eğitim ve Araştırma Hastanesi
2017

10.1007/s12262-025-04290-3 article EN Indian Journal of Surgery 2025-02-15

Objectives: This study aims to evaluate the effectiveness of current conventional and advanced irrigation techniques after minimally invasive instrumentation in necrotic oval root canals by histological analysis. Methods: Seventy extracted lower premolars with single classified utilizing bidirectional radiographs (mesiodistal diameter 2.5 times larger than buccolingual) were prepared up 20.04 v. The samples assigned five experimental groups (n = 14) using complementary technique: needle...

10.3390/jcm14082597 article EN Journal of Clinical Medicine 2025-04-10

Ewing sarcoma (ES) usually arises from long bones and affects the head neck region in only 1%-4% of cases. We reported clinical, radiographic, cytomorphologic, histomorphologic findings ES mandible, because its rarity radiologically misinterpreted as a parotid gland tumor. A 26-year-old male patient presented with history painfull cheek swelling. On magnetic resonance imaging, mass measuring 50 × 48 45 mm was found eroding mandible pushing back gland. Aspiration cytology performed suspicion...

10.1002/dc.25316 article EN Diagnostic Cytopathology 2024-04-06

Background: In recent years, GATA-binding protein 3 (GATA3) has been indicated as a marker showing good prognosis in breast cancer. luminal cancer, which prognosis, it shows more significant elevation small-sized and low-grade tumors. contrast, Ki-67 is defined poor prognostic factor. The aim of this study was to emphasise the importance GATA3 inverse relationship with Ki-67. Materials Methods: our study, 90 patients invasive ductal cancer were immunohistochemically evaluated for expression....

10.21873/anticanres.14578 article EN Anticancer Research 2020-09-28

Localized amyloidosis in the breast is a very rare disease and may mimic malignant lesions. A 60-year-old woman who had history of breast-conserving surgery presents with new well-defined oval opacity accompanied by many round tight clustered micro- macrocalcifications on mammograms. It could not be visualized sonographically due to intense posterior acoustic shadowing fat necrosis areas contrast enhancement was detected this area dynamic enhanced magnetic resonance images. At pathological...

10.5152/ejbh.2018.4104 article EN cc-by-nc-nd Meme sağlığı dergisi/Meme sağlığı dergisi 2018-10-25

: Bladder cancer, predominantly urothelial carcinoma, is an important malignancy of the urinary system. Despite same histologic grade and stage, some patients seem to have a worse prognosis. In this context, epithelial-mesenchymal transition (EMT), characterized by loss E-cadherin gain vimentin expression, process in tumor progression. Galectin-3, lactose-binding protein involved various cellular processes, has been associated with increased cell migration, invasion, treatment resistance.

10.3390/diagnostics14202270 article EN cc-by Diagnostics 2024-10-12

ÖZETAmaç: serviks kanseri, önleme programlarına rağmen dünya genelinde kadın ölümlerinin önde gelen nedenlerindendir.bu çalışmanın amacı, servikal intraepitelyal neoplazi ve skuamöz hücreli karsinom olgularında, HPV-HR p16 değerlendirilmesi ile sitolojik

10.5146/jcpath.2017.12 article TR Journal of Current Pathology 2017-01-01

Objective: Our study aimed to evaluate the accuracy of axillary ultrasonography (AUS) and ultrasonography-guided fine-needle aspiration biopsy (US-FNAB) methods in patients diagnosed with breast cancer.In addition, investigate group that does not need sentinel lymph node (SLNB) and/or dissection among clinically negative axilla patients. Methods:The cancer an AUS scan US-FNAB suspected between January 2013 April 2020 were included, whose treatment started neoadjuvant chemotherapy...

10.4274/jarem.galenos.2021.73745 article EN Journal of Academic Research in Medicine 2021-12-01

Sarcomatoid variant of urothelial carcinoma the urinary bladder is a rare malignant neoplasm, which defined with biphasic neoplasm both an epithelial and mesenchymal component by histopathological immunohistochemistry.It responsible for 0.3% off all carcinomas.The aim this study was to present immunohistochemical findings case sarcomatoid review relevant literature.A 75-year-old man presented our hospital hematuria.6.5x5.8 cm tumor found in at ultrasonography.Magnetic resonance imaging...

10.4274/eamr.galenos.2018.77785 article EN European Archives of Medical Research 2020-06-01

Background : Malignant melanoma is the second most frequent tumor that metastasize to salivary glands.Fine needle aspiration (FNA) a simple, rapid and widely accepted method for diagnosis of gland lesions.In this case report, forty-four years old male patient who admitted hospital due painless mass in parotid gland, presented.A FNA was performed following cytological, histological immunohistochemical examination material, final malignant melanoma.Deatiled history revealed head neck region...

10.21608/ejentas.2019.15738.1143 article EN Egyptian Journal of Ear Nose Throat and Allied Sciences 2020-08-01

Objective: We aimed to analyze the sensitivity, specificity, positive predictive values (PPV) and negative (NPV) accuracy of frozen section (FS) method compare concordance FS responses paraffin (PS) (final histopathological diagnoses) results ovarian mass operations in our hospital.Methods: retrospectively reviewed cases lesions operated between March 2008 June 2018 which was requested.In total 205 were found compared.The PS classified as benign, borderline malignant.Seventeen weren't...

10.4274/jarem.galenos.2020.3185 article EN Journal of Academic Research in Medicine 2020-12-01
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