Comparison of ultrasonographically guided fine-needle aspiration and core needle biopsy in the diagnosis of parotid masses

✍ Scribed by Yu-Chieh Huang; Chen-Te Wu; Gigin Lin; Wen-Yu Chuang; Kee-Min Yeow; Yung-Liang Wan

• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 189 KB
• Volume: 40
• Category: Article
• ISSN: 0091-2751
• DOI: 10.1002/jcu.20873

✦ Synopsis

Abstract

Background.

To retrospectively compare the accuracies of ultrasound‐guided fine‐needle aspiration (USFNA) and ultrasound‐guided core needle biopsy (USCNB) in the diagnosis of parotid masses.

Methods.

A total of 171 patients (aged 17–86 years, mean 54 years) with parotid masses (35 malignant and 136 benign lesions) underwent either USFNA (n = 107) or USCNB (n = 64). The diagnostic accuracies for differentiating benign from malignant lesions of both examinations were compared. Surgical histopathology (n = 104) and clinical diagnosis (n = 67) were used to establish the final diagnoses.

Results.

USCNB had a significantly higher sensitivity (94.1%) than USFNA (55.6%) (p < 0.05) in differentiating benign lesions from malignant conditions. The specificity and overall accuracy of USCNB were higher than those of USFNA (100% and 98.4% versus 93.3% and 86.9%, respectively). USCNB provided more specific diagnosis than USFNA (100% versus 93.3%, p < 0.05). All six patients with lymphomas who underwent USCNB were accurately diagnosed, whereas all four patients with lymphomas who underwent USFNA were not.

Conclusions.

USCNB should be preferred to USFNA when a definite diagnosis of a parotid solid mass is needed. © 2011 Wiley Periodicals, Inc. J Clin Ultrasound, 2011;