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- Title
Evaluation of real-time qualitative sonoelastography of focal lesions in the parotid and submandibular glands: applications and limitations.
- Authors
Bhatia KS; Rasalkar DD; Lee YP; Wong KT; King AD; Yuen HY; Ahuja AT; Bhatia, Kunwar S S; Rasalkar, Darshana D; Lee, Yim-Ping; Wong, Ka-Tak; King, Ann D; Yuen, Hok-Yuen; Ahuja, Anil T
- Abstract
<bold>Objective: </bold>To evaluate qualitative ultrasound elastography for focal salivary gland masses identified during routine clinical practice.<bold>Methods: </bold>Sixty-five parotid or submandibular masses in 61 patients underwent real-time qualitative ultrasound elastography and were scored on colour-scaled elastograms in terms of their stiffness relative to adjacent normal salivary parenchyma from ES 1 (soft) to ES 4 (stiff). This was correlated with diagnosis from aspiration cytology or histology.<bold>Results: </bold>There were 29 Warthin's tumours (WTs), 23 pleomorphic adenomas (PAs), 2 adenoid cystic carcinomas, 1 adenosquamous carcinoma, 1 nodal metastasis from nasopharyngeal carcinoma, 1 lymphoma (2 deposits), 3 Kuttner tumours and 4 cases of Kimura's disease. ES scores showed clustering according to pathological condition. In this respect, PAs were firmer than WTs (P < 0.004, Fisher's exact test). Nine, 19, 14 and 17 of the benign masses and 0, 1, 2 and 3 of the malignant masses were ES 1, 2, 3 and 4 respectively. All three primary salivary malignancies were ES 4 compared with 1/29 WTs and 16/23 PAs.<bold>Conclusion: </bold>These preliminary findings suggest that qualitative real-time ultrasound elastography, although an ancillary technique to conventional ultrasound in the salivary glands, is likely to have a poor ability to discriminate benign lesions (particularly PAs) from malignant disease.
- Publication
European Radiology, 2010, Vol 20, Issue 8, p1958
- ISSN
0938-7994
- Publication type
journal article
- DOI
10.1007/s00330-010-1756-0