case_images: PMC5376422_01
case_images: Neoplastic pleomorphic cells and physaliphorous cells, with vacuolated PAS positive cytoplasm and prominent vesicular nuclei with mild atypia, combined to small tumor cells with inconspicuous and no visible nuclei (haematoxylin and eosin, 20x and 40x).
case_images: CRIPA2017-5281239.001.jpg
case_images: PMC5376422_01_CRIPA2017-5281239.001.jpg
case_images: fig1
case_images: Neither foci of chondroid (cartilaginous) differentiation nor sarcomatous areas were observed as well (Figures 1(a)-1(c)).
case_images: Positivity of the tumor cells for EMA (20x).
case_images: CRIPA2017-5281239.002.jpg
case_images: PMC5376422_01_CRIPA2017-5281239.002.jpg
case_images: fig2
case_images: Tumor cells stained for S-100 protein (Figure 5), cytokeratin AE1/AE3 (Figure 3), EMA (Figure 2), and vimentin (Figure 4) whereas a negativity for CEA and smooth muscle actin was detected.
case_images: Positivity of the tumor cells for CKAE1/AE3 (20x).
case_images: CRIPA2017-5281239.003.jpg
case_images: PMC5376422_01_CRIPA2017-5281239.003.jpg
case_images: fig3
case_images: Tumor cells stained for S-100 protein (Figure 5), cytokeratin AE1/AE3 (Figure 3), EMA (Figure 2), and vimentin (Figure 4) whereas a negativity for CEA and smooth muscle actin was detected.
case_images: Positivity of the tumor cells for vimentin (40x).
case_images: CRIPA2017-5281239.004.jpg
case_images: PMC5376422_01_CRIPA2017-5281239.004.jpg
case_images: fig4
case_images: Tumor cells stained for S-100 protein (Figure 5), cytokeratin AE1/AE3 (Figure 3), EMA (Figure 2), and vimentin (Figure 4) whereas a negativity for CEA and smooth muscle actin was detected.
case_images: Positivity of the tumor cells for S100 (20x).
case_images: CRIPA2017-5281239.005.jpg
case_images: PMC5376422_01_CRIPA2017-5281239.005.jpg
case_images: fig5
case_images: Tumor cells stained for S-100 protein (Figure 5), cytokeratin AE1/AE3 (Figure 3), EMA (Figure 2), and vimentin (Figure 4) whereas a negativity for CEA and smooth muscle actin was detected.