ĐÁNH GIÁ VAI TRÒ CỦA KỸ THUẬT CHỌC HÚT TẾ BÀO BẰNG KIM NHỎ DƯỚI HƯỚNG DẪN CỦA SIÊU ÂM TRONG CHẨN ĐOÁN HẠCH DI CĂN Ở BỆNH NHÂN UNG THƯ TUYẾN GIÁP THỂ BIỆT HÓA

Abstract

Background: Ultrasonic-guided fine needle aspiration cytology is a minimally invasive diagnostic technique with the highest accuracy and sensitivity in the diagnosis of lymph node metastasis. Objectives: The study consists of 2 objectives: 1) Describe clinical and subclinical characteristics in treated patients with differentiated thyroid cancer; Evaluation of the role of ultrasound-guided fine needle aspiration cytology in the diagnosis of lymph node metastasis in patients with differentiated thyroid cancer. Materials and methods: A cross-sectional descriptive study design was conducted on 89 patients diagnosed with differentiated thyroid cancer and found that the cervical lymph nodes were potentially malignant under ultrasonography and indicated fine-needle aspiration cytology under ultrasound guidance. Results: Among 89 research subjects, small cell aspiration of lymph node groups, group IV and VI lymph nodes with suspicion of malignancy accounted for the highest proportion of 25/89 nodes (28.1%) fine needle aspiration cytology, in which positive accounts for 30.1%. Sensitivity, specificity, accuracy, positive predictive value, negative predictive value, false positive rate, false negative rate, cytology accuracy were: 90%; 100%; 100%; 52.9%.0%, 10.1%, 91.01%. Conclusion: Endoscopic ultrasound plays an important role in staging the disease, however, it is necessary to combine many imaging methods in diagnosing esophageal cancer before treatment.