Auriane Pommier1, Justine Lerat2, Stéphane Orsel2, Jean-Pierre Bessede2, Karine Aubry2. 1. CHU Dupuytren, service d'ORL et de chirurgie cervicofaciale, 2, avenue Martin-Luther-King, 87000 Limoges, France. Electronic address: auriane.pommier@gmail.com. 2. CHU Dupuytren, service d'ORL et de chirurgie cervicofaciale, 2, avenue Martin-Luther-King, 87000 Limoges, France.
Abstract
INTRODUCTION: The aim of this study was to correlate the cytological and histological results and evaluate the diagnostic performance of fine-needle aspiration cytology (FNAC) in the management of parotid gland tumors. METHODS: This retrospective study included 160 patients with a parotid gland tumor who underwent fine-needle aspiration and parotidectomy surgery between January 2005 and August 2016 at the Limoges university hospital center. RESULTS: On 160 fine-needle aspirations performed, fine-needle aspiration diagnoses were: 77 benign lesions, 35 malignant lesions and 48 non-diagnostic cases. Final histological diagnosis revealed there were 113 benign lesions and 47 malignant lesions. A hundred and one cytological diagnoses were accurate over 112 contributive fine-needle aspirations: seven false-negative cases and 4 false-positive cases were observed. The sensitivity, specificity, and accuracy were 82, 95 and 90% respectively for fine-needle aspiration, and 83, 95 and 92% respectively for association of fine-needle aspiration and magnetic resonance imaging. Diagnostic concordance between fine-needle aspiration and final histology for malignant lesions was 78%. A greater number of contributive fine-needle aspirations was observed among experimented operators. DISCUSSION: Fine-needle aspiration is a reliable, safe and effective diagnostic tool that allows good differentiation between malignant and benign diagnosis in the preoperative management of parotid gland tumors. The association of fine-needle aspiration and magnetic resonance imaging (MRI) can improve diagnostic performance.
INTRODUCTION: The aim of this study was to correlate the cytological and histological results and evaluate the diagnostic performance of fine-needle aspiration cytology (FNAC) in the management of parotid gland tumors. METHODS: This retrospective study included 160 patients with a parotid gland tumor who underwent fine-needle aspiration and parotidectomy surgery between January 2005 and August 2016 at the Limoges university hospital center. RESULTS: On 160 fine-needle aspirations performed, fine-needle aspiration diagnoses were: 77 benign lesions, 35 malignant lesions and 48 non-diagnostic cases. Final histological diagnosis revealed there were 113 benign lesions and 47 malignant lesions. A hundred and one cytological diagnoses were accurate over 112 contributive fine-needle aspirations: seven false-negative cases and 4 false-positive cases were observed. The sensitivity, specificity, and accuracy were 82, 95 and 90% respectively for fine-needle aspiration, and 83, 95 and 92% respectively for association of fine-needle aspiration and magnetic resonance imaging. Diagnostic concordance between fine-needle aspiration and final histology for malignant lesions was 78%. A greater number of contributive fine-needle aspirations was observed among experimented operators. DISCUSSION: Fine-needle aspiration is a reliable, safe and effective diagnostic tool that allows good differentiation between malignant and benign diagnosis in the preoperative management of parotid gland tumors. The association of fine-needle aspiration and magnetic resonance imaging (MRI) can improve diagnostic performance.