case_images: PMC4604645_01
case_images: Patternless sheets of primitive appearing neoplastic cells with hyperchromatic nuclei with neuropil
case_images: SNI-6-440-g001.jpg
case_images: PMC4604645_01_SNI-6-440-g001.jpg
case_images: F1
case_images: The histopathology report described a malignant infiltrating tumor present in sheets [Figure 1]. The tumor was composed of small oval to indented basophilic cells, exhibiting nuclear hyperchromasia [Figures 1 and 2].
case_images: Primitive appearing neoplastic cells with hyperchromatic nuclei, scant cytoplasm, and indistinct cell borders
case_images: SNI-6-440-g002.jpg
case_images: PMC4604645_01_SNI-6-440-g002.jpg
case_images: F2
case_images: The tumor was composed of small oval to indented basophilic cells, exhibiting nuclear hyperchromasia [Figures 1 and 2].
case_images: Tumor with areas of necrosis as indicated by the arrow (H and E, x20)
case_images: SNI-6-440-g003.jpg
case_images: PMC4604645_01_SNI-6-440-g003.jpg
case_images: F3
case_images: Extensive necrosis [Figure 3] and karyorrhexis were identified with areas of hemorrhage.
case_images: Neoplastic cells showing prominent mitotic figures as pointed out by the arrow (H and E, x40)
case_images: SNI-6-440-g004.jpg
case_images: PMC4604645_01_SNI-6-440-g004.jpg
case_images: F4
case_images: Brisk mitotic figures were also seen [Figure 4].
case_images: Tumor cells showing positivity for immunohistochemical stain CD56
case_images: SNI-6-440-g005.jpg
case_images: PMC4604645_01_SNI-6-440-g005.jpg
case_images: F5
case_images: The tumor cells showed positivity for immunohistochemical stain CD 56 [Figure 5].
case_images: Tumor cells showing focal positivity for immunohistochemical stain glial fibrillary acidic protein
case_images: SNI-6-440-g006.jpg
case_images: PMC4604645_01_SNI-6-440-g006.jpg
case_images: F6
case_images: Focal positivity for immunohistochemical stain glial fibrillary acidic protein was also seen [Figure 6].