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- Title
Salivary duct carcinomas: clinical and CT and MR imaging features in 20 patients.
- Authors
Weon, Young; Park, Sun-Won; Kim, Hyung-Jin; Jeong, Han-Sin; Ko, Young-Hyeh; Park, In; Kim, Sung; Baek, Chung; Son, Young-Ik
- Abstract
Introduction: Salivary duct carcinoma (SDC) is an uncommon high grade adenocarcinoma of the salivary gland with a grave prognosis. The aim of this study was to investigate the clinical and CT and MR imaging features of SDC. Methods: We retrospectively evaluated the clinical and CT and MR imaging findings in 20 patients (14 men and six women; mean age, 59 years) with histologically proved SDC. We also tried to correlate clinicoradiological tumor staging with pathologic tumor staging in 17 patients who underwent surgery. Results: The tumor originated in the parotid gland ( n = 11; 55%), the submandibular gland ( n = 7; 35%) and the buccal space along the distal Stensen's duct ( n = 2; 10%). Locoregional recurrence occurred in 41% and distant metastasis in 47%. Fifty-eight percent died of the disease with a mean survival period of 32 months after diagnosis. On CT and MR images, SDC was mostly seen as an ill-defined (85%) and infiltrative (60%) mass with frequent calcification (50%) and necrosis (80%). Although various signal intensities were seen on MR images, six of nine tumors contained the areas of marked hypointensity on T2-weighted images. Clinicoradiological tumor staging correlated well with pathologic tumor staging in 82% of the patients. Conclusion: Ill-defined, infiltrative mass with calcification on CT scans and the areas of marked hypointensity on T2-weighted MR images may be useful radiologic features to suggest the diagnosis of SDC. CT and MR imaging are useful for staging of SDC.
- Subjects
SOUTH Korea; ADENOCARCINOMA; DIAGNOSTIC imaging; METASTASIS; TUMOR diagnosis; SALIVARY gland tumors; TOMOGRAPHY; MAGNETIC resonance imaging; HEALTH outcome assessment; PAROTID glands; RADIONUCLIDE imaging; TUMOR classification; ULTRASONIC imaging; EQUIPMENT &; supplies; TREATMENT effectiveness; RETROSPECTIVE studies; DESCRIPTIVE statistics; DIAGNOSIS
- Publication
Neuroradiology, 2012, Vol 54, Issue 6, p631
- ISSN
0028-3940
- Publication type
Article
- DOI
10.1007/s00234-012-1014-z