case_images: PMC8298140_01
case_images: CT scan showing cecal tumor with small bowel distension and air in the retroperitoneal space.
case_images: CRIONM2021-6680702.001.jpg
case_images: PMC8298140_01_CRIONM2021-6680702.001.jpg
case_images: fig1
case_images: CT scan revealed signs of peritonitis with psoas abscess and free air in the retroperitoneal space (Figure 1).
case_images: Operating view showing signs of retroperitoneal perforation after right colectomy.
case_images: CRIONM2021-6680702.002.jpg
case_images: PMC8298140_01_CRIONM2021-6680702.002.jpg
case_images: fig2
case_images: Intestinal anastomosis was not performed due to the high risk of leak (Figure 2).
case_images: Low magnification HE stain showing tumor proliferation organized in solid islands infiltrating the chorion.
case_images: CRIONM2021-6680702.003.jpg
case_images: PMC8298140_01_CRIONM2021-6680702.003.jpg
case_images: fig3
case_images: Tumor cells were positive for P63 and negative for neuroendocrine tumors biomarkers (Chromogranin A and Synaptophysin) with a Ki-67 proliferation index estimated to 90% (Figures 3-6).
case_images: high magnification HEx40, polygonal tumor cells with moderately atypical nuclei and abundant eosinophilic cytoplasm.
case_images: CRIONM2021-6680702.004.jpg
case_images: PMC8298140_01_CRIONM2021-6680702.004.jpg
case_images: fig4
case_images: Tumor cells were positive for P63 and negative for neuroendocrine tumors biomarkers (Chromogranin A and Synaptophysin) with a Ki-67 proliferation index estimated to 90% (Figures 3-6).
case_images: Immunohistochemistry HEX20 intense nuclear marking of tumor cells at P63.
case_images: CRIONM2021-6680702.005.jpg
case_images: PMC8298140_01_CRIONM2021-6680702.005.jpg
case_images: fig5
case_images: Tumor cells were positive for P63 and negative for neuroendocrine tumors biomarkers (Chromogranin A and Synaptophysin) with a Ki-67 proliferation index estimated to 90% (Figures 3-6).
case_images: HEx20 Ki67 estimated to more than 9%.
case_images: CRIONM2021-6680702.006.jpg
case_images: PMC8298140_01_CRIONM2021-6680702.006.jpg
case_images: fig6
case_images: Tumor cells were positive for P63 and negative for neuroendocrine tumors biomarkers (Chromogranin A and Synaptophysin) with a Ki-67 proliferation index estimated to 90% (Figures 3-6).