PMC7315060_01
MRI of the left parotid mass.
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F1
Contrast-enhanced magnetic resonance imaging (MRI) revealed a lobulated, irregular mass (32x22 mm) located in the anteroinferior segment of the superficial lobe of the left parotid gland, with areas of extensive central necrosis, septation, and peripheral wall enhancement and a pure cystic lesion lateral to the retromandibular vein in the right parotid gland (Figs. 1, 2).
MRI of the right parotid mass.
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F2
Contrast-enhanced magnetic resonance imaging (MRI) revealed a lobulated, irregular mass (32x22 mm) located in the anteroinferior segment of the superficial lobe of the left parotid gland, with areas of extensive central necrosis, septation, and peripheral wall enhancement and a pure cystic lesion lateral to the retromandibular vein in the right parotid gland (Figs. 1, 2).
Histopathologic slide of intermediate-grade mucoepidermoid carcinoma of the left parotid gland (magnification, x200; hematoxylin-eosin stain).
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F3
The final histopathology of left and right surgical specimens confirmed the frozen section findings and was reported as intermediate- and low-grade mucoepidermoid carcinomas, respectively (Figs. 3, 4).
Histopathologic slide of low-grade mucoepidermoid carcinoma of the right parotid gland (magnification, x200; hematoxylin-eosin stain).
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F4
The final histopathology of left and right surgical specimens confirmed the frozen section findings and was reported as intermediate- and low-grade mucoepidermoid carcinomas, respectively (Figs. 3, 4).