American Journal of Neuroradiology, Vol 17, Issue 3 560-562, Copyright © 1996 by American Society of Neuroradiology
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Epithelial-myoepithelial carcinoma of the parotid gland
AR Silvers, PM Som and M Brandwein
Department of Radiology, Mount Sinai School of Medicine of the City University of New York, NY 10029, USA.
We describe an unusual salivary neoplasm, an epithelial-myoepithelial carcinoma (EMEC) of the parotid gland, that occurred in a 64-year-old man. A CT scan showed a fairly well defined heterogeneous lesion with smooth margins and slight enhancement. MR images showed a lesion with intermediate T1-weighted signal intensity and a relatively high T2- weighted signal intensity. Although the imaging characteristics of EMEC on both CT and MR studies are nonspecific, clinicians and radiologists must be aware of its high local recurrence rate, which has been reported to approach 50% in some series, and thus the need for periodic postoperative imaging to detect early recurrence.
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