THE VALUE OF MAGNETIC RESONANCE IMAGING IN PREDICTING CERVICAL LYMPH NODE METASTASIS BASED ON TUMOR DEPTH OF INVASION AND IN T STAGING OF TONGUE CANCER
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Abstract
Objective: To determine the value of depth of invasion measured on magnetic resonance imaging in predicting malignant cervical lymph nodes and to evaluate the concordance between magnetic resonance imaging and histopathology in T staging of tongue cancer. Methods: A cross-sectional descriptive study was conducted on 47 patients diagnosed with squamous cell carcinoma of the anterior two-thirds of the tongue who underwent surgery at the University Medical Center Ho Chi Minh City from January 2021 to May 2025. Results: A strong correlation was found between the depth of invasion measured on magnetic resonance imaging and on histopathology (ρ = 0.828, p < 0.001). The rate of malignant nodes increased significantly with the level of radiological depth of invasion: 0% in the rDOI ≤ 5 mm group, 14.3% in the > 5-10 mm group, and 68.0% in the > 10 mm group (p < 0.001). The optimal rDOI cutoff for predicting malignant nodes was 10 mm, with a sensitivity of 89.5% and a specificity of 71.4% (AUC = 0.858). T staging on magnetic resonance imaging also showed good agreement with histopathology (Kappa coefficient = 0.772). Conclusion: MRI-measured depth of invasion is a reliable predictor for the risk of malignant cervical lymph nodes in patients with tongue cancer; additionally, MRI is also a highly valuable tool for T staging.
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Keywords
tongue cancer, magnetic resonance imaging, depth of invasion, malignant cervical lymph nodes, predictive factor, T staging.
References
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