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  Indian J Med Microbiol
 

Figure 2: (a) Cytokeratin 7: Diffuse cytoplasmic-positive staining in tumor cells (DAB, ×200). (b) Cytokeratin 20: Negative staining in tumor cells (DAB, ×200). (c) Glial fibrillary acidic protein: Negative in the tumor cells, positive in the glial tissue (red arrow) (DAB, ×200). (d) Thyroid transcription factor-1: Focal nuclear-positive expression in tumor cells (black arrows) (DAB, ×200)

Figure 2: (a) Cytokeratin 7: Diffuse cytoplasmic-positive staining in tumor cells (DAB, ×200). (b) Cytokeratin 20: Negative staining in tumor cells (DAB, ×200). (c) Glial fibrillary acidic protein: Negative in the tumor cells, positive in the glial tissue (red arrow) (DAB, ×200). (d) Thyroid transcription factor-1: Focal nuclear-positive expression in tumor cells (black arrows) (DAB, ×200)