J Med Life Sci > Volume 10(3); 2014 > Article
Journal of Medicine and Life Science 2014;10(3):233-235.
DOI: https://doi.org/10.22730/jmls.2014.10.3.233    Published online February 28, 2014.
Submandibular Oncocytoma with Prominent Contrast Enhancement on Computed Tomography
Ji Kang Park1, Jeong Hong Kim2, Gil Chai Lim2
1Department of Radiology, Jeju National University College of Medicine, Jeju, Korea
2Department of Otolaryngology - Head and Neck Surgery, Jeju National University College of Medicine, Jeju, Korea
Correspondence:  Gil Chai Lim, Email: bayi0810@gmail.com
Received: 27 January 2014   • Revised: 3 February 2014   • Accepted: 10 February 2014
Abstract
An oncocytoma is a rare salivary gland neoplasm, and about 11% of oncocytomas of the salivary gland occur in the submandibular gland. This is a case report of an oncocytoma of the submandibular gland that showed strong homogenous contrast enhancement on a computed tomography (CT) scan. We summarize our case and review the imaging features of prior literature on oncocytomas. The submandibular mass showed relatively high density on the precontrast CT scan [43 Hounsfield unit (HU)]. There was no remarkable calcification. The mass showed homogenously strong contrast enhancement (mean, 162 HU; maximum, 188 HU; and minimum, 130 HU). In the case presented here, the HU levels of the submandibular oncocytoma on a contrast-enhanced CT is remarkably higher than the HU levels of the salivary gland tumors described in prior literature. If a mass of the salivary gland has strong contrast enhancement on a CT scan, the occurrence of an oncocytoma of the salivary gland may be possible, the possibility of the oncocytoma of the salivary gland may be considered.
Key Words: Oncocytoma, Submandibular Gland, Computed Tomography, Contrast Media, Doppler Ultrasonography
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