Ung thư vòm mũi họng (nasopharyngeal carcinoma: NPC) là loại bệnh lý ác tính có tỉ lệ mắc cao nhất trong số các ung thư vùng đầu mặt cổ. Bài viết tập trung mô tả đặc điểm hình ảnh và đánh giá vai trò của 18FDG-PET/CT trong chẩn đoán hạch cổ ở bệnh nhân ung thư vòm mũi họng. | NGHIÊN CỨU KHOA HỌC NGHIÊN CỨU ĐẶC ĐIỂM HÌNH ẢNH NGHIÊN CỨU KHOA HỌC 18 FDG-PET CT HẠCH CỔ Ở BỆNH NHÂN SCIENTIFIC RESEARCH UNG THƯ VÒM MŨI HỌNG Describe imaging characteristics and evaluate the role of 18FDG-PET CT in the diagnosis of cervical lymph nodes in nasopharyngeal cancer patients Nguyễn Quang Toàn Nguyễn Thanh Bình Phạm Lâm Sơn SUMMARY Purpose Describe imaging characteristics and evaluate the role of 18FDG-PET CT in the diagnosis of cervical lymph nodes in nasopharyngeal cancer patients. Subjects and methods Prospective description of 60 patients with nasopharyngeal carcinoma identified by biopsy and histopathology and untreated in which 55 patients with undifferentiated carcinoma and 5 patients with squamous cell carcinoma were taken with 18FDG PET CT and compared with ultrasound and done FNA lymph nodes respectively from June 2018 to July 2019 to K Central Hospital Tan Trieu campus. All 18FDG-PET CT films were read and compared with their respective locations on ultrasound and lymph node FNA before treatment. Results In total 60 patients common age is male female 5 1 A total of 379 bilateral cervical lymph nodes on PET CT 195 lymph nodes in the left neck are common the most common lymph node location in group II of patients and 61 of total lymph nodes . There are 322 379 85 lymph nodes with structural loss on ultrasound there is a correlation between lymph node size and lymph node absorption on 18FDG-PET CT with r cervical lymph node groups 322 379 Structural abnormal lymph nodes with SUVmax nearly 4 times higher than 57 379 normal lymph nodes with SUVmax . In a total of 379 lymph nodes over 60 patients there was a close agreement between the lymph nodes with loss of umbilical fat structure on ultrasound with SUVmax gt threshold of kappa and better at the threshold. SUVmax gt was Cohen s kappa on PET CT. In addition cytology was positive in 60 89 lymph nodes undergoing FNA which was in
