PMC3271623_01
Complex papillary structures having a central vascular core with large areas of necrosis
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F1
They showed stratification and multilayering of cells with nuclear crowding [Figure 1].
Lining cells show stratification and multilayering with large oval nuclei and show numerous mitotic figures
JNRP-3-71-g002.jpg
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F2
The cells had large oval to irregular hyperchromatic nuclei, numerous mitotic figures and large areas of necrosis were also seen [Figure 2].
S-100 positivity
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F3
Immunohistochemical analysis for S-100, Cytokeratin, GFAP, and p53 protein showed positivity [Figures 3-5].
Pan cytokeratin positivity
JNRP-3-71-g004.jpg
PMC3271623_01_JNRP-3-71-g004.jpg
F4
Immunohistochemical analysis for S-100, Cytokeratin, GFAP, and p53 protein showed positivity [Figures 3-5].
GFAP positivity
JNRP-3-71-g005.jpg
PMC3271623_01_JNRP-3-71-g005.jpg
F5
Immunohistochemical analysis for S-100, Cytokeratin, GFAP, and p53 protein showed positivity [Figures 3-5].