Accuracy of palpation, ultrasonography, and computed tomography in the evaluation of metastatic cervical lymph nodes in head and neck cancer.

Abstract

Introduction: India accounts for the majority of oral cancer cases occurring worldwide. The metastasis of oral cancer to the regional lymph nodes and distant sites determines the prognosis and the survival rate of this disease.

Objectives: The aim and objectives of this study were to evaluate the accuracy of preoperative clinical methods such as palpation, ultrasonography (USG), and computed tomography (CT) in comparison with postoperative histopathological findings in determination of metastatic cervical lymph nodes and also to assess whether combining these techniques increases the specificity and sensitivity of lymph node metastasis in oral squamous cell carcinoma (SCC).

Methodology: Totally, 26 consecutive biopsy proven cases of oral SCC were included, and the nodal status was evaluated by palpation, CT and ultrasound (US) and confirmed by histopathological examination. The results were presented in terms of sensitivity, specificity, predictive values, accuracy, and P value.

Results: Palpation, USG, and CT findings were compared with histopathologic findings by Fisher's exact test and the "P" value for palpation, US and CT were 0.003, 0.000, 0.000, respectively, which are statistically significant.

Conclusion: US examination combined with CT gives a better assessment of the neck for nodal metastasis.