case_images: PMC8267018_01
case_images: Magnetic resonance imaging demonstrated enlargement of bilateral neck node of upper jugular, middle jugular, and parotid groups (arrow). These nodes lost their normal architecture and some showed necrosis center. The largest one measured 21 x 17 mm.
case_images: 10.1177_23247096211029789-fig1.jpg
case_images: PMC8267018_01_10.1177_23247096211029789-fig1.jpg
case_images: fig1-23247096211029789
case_images: Some of those showed necrosis center (Figure 1).
case_images: Results of pathology: Tumor cells are clustered, with round or oval nuclear, and unclear nucleoli. Mitosis activities in those cells are low with eosinophilic cytoplasm (arrow).
case_images: 10.1177_23247096211029789-fig2.jpg
case_images: PMC8267018_01_10.1177_23247096211029789-fig2.jpg
case_images: fig2-23247096211029789
case_images: They had large and pleomorphic nuclei with prominent nucleoli (Figure 2).
case_images: Results of immunohistochemistry: marker CK (+) sporadic, weak; marker desmin (+); marker CD56 (+); marker epithelial membrane antigen (+) weak; marker Oligo2 (-); marker PR (-).
case_images: 10.1177_23247096211029789-fig3.jpg
case_images: PMC8267018_01_10.1177_23247096211029789-fig3.jpg
case_images: fig3-23247096211029789