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  • Title: Evaluation of metastatic lymph nodes in head and neck cancer: a comparative study between palpation, ultrasonography, ultrasound-guided fine needle aspiration cytology and computed tomography.
    Author: Rottey S, Petrovic M, Bauters W, Mervillie K, Vanherreweghe E, Bonte K, Van Belle S, Vermeersch H.
    Journal: Acta Clin Belg; 2006; 61(5):236-41. PubMed ID: 17240737.
    Abstract:
    STUDY DESIGN: In head and neck cancer patients, diagnosis of metastatic lymph nodes of the neck is essential for treatment planning and prognosis assessment. In a retrospective study, we compared palpation, ultrasonography, ultrasound-guided fine needle aspiration and computed tomography in patients with head and neck cancer. METHODS: Results of palpation, ultrasonography and computed tomography were available in 78 out of 110 patients diagnosed with head and neck cancer. Ultrasound-guided fine needle aspiration cytology was performed in 26 of these patients. Patients with suspected lymph node(s) observed in one or more techniques underwent neck dissection. RESULTS: Twenty seven patients underwent neck dissection, studying 150 lymph node regions. The sensitivity, specificity, positive predictive value, negative predictive value and efficacy were calculated for palpation (48.7%, 95.5%, 79.2%, 84.1%, 83.3% respectively), ultrasonography (65.8%, 83.0%, 56.8%, 87.7%, 78.7% respectively), ultrasound-guided fine needle aspiration cytology (86.7%, 87.5%, 81.3%, 91.3%, 87.2% respectively) and computed tomography (52.5%, 83.6%, 53.9%, 82.9%, 75.3% respectively). CONCLUSIONS: In the assessment of lymph node metastases of the neck in patients with primary head and neck cancer, we found a high specificity for palpation of the neck and an acceptable efficacy for both ultrasonography and computed tomography being comparable between the two methods. Efficacy of ultrasound-guided fine needle aspiration cytology was high approaching the value of 90%.
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