Selcuk Dental Journal, cilt.11, sa.2, ss.182-186, 2024 (Scopus)
Background: Between 85-95% of malignant tumors in the oral cavity originate from squamous epithelium lining the oral mucosa. Oral squamous cell carcinoma (OSCC) is a type of cancer with various complications and a high mortality rate because it is usually diagnosed at advanced stages. TNM most commonly used systems to evaluate the prognosis of malignant tumors. In this study, the findings required for TNM staging of patients with histopathologically diagnosed OSCC were evaluated retrospectively. Methods: We retrospectively evaluated the patients who were examined in Kocaeli University Faculty of Medicine, Department of Pathology between 2018 and 2023 and diagnosed with OSCC. For TNM staging of OSCC cases, lesion size, depth of tumor invasion, presence of metastasis, lymph node involvement and size were evaluated. In addition, demographic data, tumor localization and differentiation grade were evaluated in relation to TNM staging. Results: In this study, 33 OSCC cases were retrospectively evaluated. Mean tumor size was 2.4 cm in 16 cases with good-differentiation and 3.3 cm in 17 cases with moderate-differentiation. While good-differentiated cases most commonly involved the tongue, moderately differentiated cases involved the gingiva. Lymph node involvement was present in 4 moderately differentiated cases. Metastasis was not detected in any case. Conclusion: When the size of tumors in the oral cavity is less than 2 cm (T1), they cannot be detected by CT or MR. When the size is larger than 2 cm (T2 and above), the possibility of invasion and metastasis to surrounding tissues increases. Therefore, dentists should pay attention to ulcerated/erosive lesions.