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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