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Sonographic diagnosis of parotid gland lesions: correlation with the results of sonographically guided fine-needle aspiration biopsy (CROSBI ID 166917)

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Kovačević-Obad, Dragica ; Fabijanić, Iris Sonographic diagnosis of parotid gland lesions: correlation with the results of sonographically guided fine-needle aspiration biopsy // Journal of clinical ultrasound, 38 (2010), 6; 294-298. doi: 10.1002/jcu.20704

Podaci o odgovornosti

Kovačević-Obad, Dragica ; Fabijanić, Iris

engleski

Sonographic diagnosis of parotid gland lesions: correlation with the results of sonographically guided fine-needle aspiration biopsy

Purpose The aim was to assess the value of ultrasound (US) in differentiating benign from malignant parotid gland lesions. Methods During a 3-year period, US-guided fine-needle aspiration biopsy was performed on 89 parotid lesions with a size ≥5 mm in 68 patients. In 80 (90%) lesions, specimens were adequate for cytologic analysis. We recorded the seven following US parameters: size, number, echogenicity, echotexture, margins' clarity, distal acoustic enhancement, and regional lymph node enlargement. Results Fine-needle aspiration biopsy revealed 18 (22%) malignant tumors, 30 (38%) benign tumors, and 32 (40%) nonneoplastic lesions. The mean size of the malignant tumors was 25 ± 17 mm versus 27 ± 17 mm for benign tumors versus 21 ± 12 mm for nonneoplastic lesions (p > 0.05). Among 33 solitary tumors, 9 were malignant tumors and 24 were benign tumors. The majority of the parotid lesions were hypoechoic. The US feature that was most often associated with a benign lesion was distal acoustic enhancement. The US features that suggested malignancy were a heterogeneous echotexture, indistinct margins, and regional lymph node enlargement. Conclusion US can aid in the differentiation of parotid gland tumors, although benign and malignant parotid tumors often have a similar sonographic appearance.

parotid neoplasm; ultrasonography; fine-needle aspiration biopsy; head and neck; salivary glands

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Podaci o izdanju

38 (6)

2010.

294-298

objavljeno

0091-2751

10.1002/jcu.20704

Povezanost rada

Temeljne medicinske znanosti

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