Epithelial-myoepithelial carcinoma of the parotid gland: correlation of dynamic magnetic resonance imaging, (18)F-fluorodeoxyglucose-positron emission tomography, and pathological findings

Jpn J Radiol. 2010 Oct;28(8):618-22. doi: 10.1007/s11604-010-0468-3. Epub 2010 Oct 24.

Abstract

We encountered two cases of epithelial-myoepithelial carcinoma (EMC), a rare low-grade malignant tumor of the parotid gland. These two EMCs showed similar imaging findings: gradual contrast enhancement on dynamic magnetic resonance imaging (MRI), intense (18)F-fluorodeoxyglucose (FDG) uptake in the solid tumor portion, and little enhancement and little FDG uptake in the hemorrhagic necrotic tumor portion. When a parotid gland tumor shows gradual MRI contrast enhancement and focally intense FDG uptake, EMC should be included in the differential diagnosis.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Carcinoma / diagnosis*
  • Carcinoma / diagnostic imaging
  • Carcinoma / pathology
  • Female
  • Fluorodeoxyglucose F18*
  • Humans
  • Magnetic Resonance Imaging / methods*
  • Myoepithelioma / diagnosis*
  • Myoepithelioma / diagnostic imaging
  • Myoepithelioma / pathology
  • Myoepithelioma / surgery
  • Parotid Neoplasms / diagnosis*
  • Parotid Neoplasms / diagnostic imaging
  • Parotid Neoplasms / pathology
  • Parotid Neoplasms / surgery
  • Positron-Emission Tomography / methods*
  • Radiopharmaceuticals*

Substances

  • Radiopharmaceuticals
  • Fluorodeoxyglucose F18