Document Detail

Sonographic evaluation of the parotid ducts: its use in tumour localization.
MedLine Citation:
PMID:  1773266     Owner:  NLM     Status:  MEDLINE    
The previously unreported sonographic anatomy of the intraglandular parotid ducts is described, and how this aids tumour localization is illustrated. Forty patients underwent ultrasonography and computed tomography (CT) sialography for the evaluation of parotid tumours. Ultrasound identified two extra unsuspected 5 mm tumours in the superficial lobe, which could not be seen at CT. Both techniques produced similar results for deep and mixed lobe lesions. Ultrasound had one false positive mixed lesion, which surgery subsequently found to be confined to the deep lobe. The full extent of invasion in three deep lobe tumours was revealed only by CT to be parotid invasion by nasopharyngeal carcinomas. We conclude that parotid sonography with reference to the intraglandular ducts is highly accurate in localizing parotid tumours and should probably be the first-line imaging technique. Computed tomography should only be necessary for visualization of deep lobe tumour extent and in those cases where the complete tumour boundary cannot be seen by ultrasound alone.
M J Bradley; A Ahuja; C Metreweli
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  The British journal of radiology     Volume:  64     ISSN:  0007-1285     ISO Abbreviation:  Br J Radiol     Publication Date:  1991 Dec 
Date Detail:
Created Date:  1992-03-02     Completed Date:  1992-03-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0373125     Medline TA:  Br J Radiol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1092-5     Citation Subset:  AIM; IM    
Department of Radiodiagnosis and Organ Imaging, Prince of Wales Hospital, Shatin, New Territories, Hong Kong.
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MeSH Terms
Nasopharyngeal Neoplasms / pathology
Parotid Gland / ultrasonography*
Parotid Neoplasms / radiography,  secondary,  ultrasonography*
Tomography, X-Ray Computed

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