case_images: PMC9741533_01
case_images: The tumor in the sigmoid fixated to the abdominal wall seen on CT in lateral cross-section.
case_images: CRIPA2022-7631686.001.jpg
case_images: PMC9741533_01_CRIPA2022-7631686.001.jpg
case_images: fig1
case_images: An urgent computed tomography (CT) scan was conducted which revealed an infiltrative process in the sigmoid colon (Figure 1) and probable metastatic lesions in the liver.
case_images: H&E slides demonstrate colonic adenocarcinoma with a clear cell component with clear cytoplasms: (a) 40x; (b) 100x.
case_images: CRIPA2022-7631686.002.jpg
case_images: PMC9741533_01_CRIPA2022-7631686.002.jpg
case_images: fig2
case_images: Histological examination revealed mucinous colon adenocarcinoma with a clear cell component (Figures 2 and 3).
case_images: Microscopic appearance of the clear cell component in the tumor: (a) 40x; (b) 100x.
case_images: CRIPA2022-7631686.003.jpg
case_images: PMC9741533_01_CRIPA2022-7631686.003.jpg
case_images: fig3
case_images: Histological examination revealed mucinous colon adenocarcinoma with a clear cell component (Figures 2 and 3).
case_images: Focal distribution of CK20 positive staining in the tumor (100x).
case_images: CRIPA2022-7631686.004.jpg
case_images: PMC9741533_01_CRIPA2022-7631686.004.jpg
case_images: fig4
case_images: A panel of histochemical and immunohistochemical reactions was done (Figures 4-6).
case_images: Strong nuclear CDX2 positive staining in the tumor (100x).
case_images: CRIPA2022-7631686.005.jpg
case_images: PMC9741533_01_CRIPA2022-7631686.005.jpg
case_images: fig5
case_images: A panel of histochemical and immunohistochemical reactions was done (Figures 4-6).
case_images: Alcian/PAS staining was negative in the tumor cells of the clear component: (a) 40x; (b) 100x.
case_images: CRIPA2022-7631686.006.jpg
case_images: PMC9741533_01_CRIPA2022-7631686.006.jpg
case_images: fig6
case_images: A panel of histochemical and immunohistochemical reactions was done (Figures 4-6).
case_images: Positive staining of the clear cell component for MMR: (a) PMS2 (100x); (b) MSH6 (100x); (c) MSH2 (100x); (d) MCH1 (100x).
case_images: CRIPA2022-7631686.007.jpg
case_images: PMC9741533_01_CRIPA2022-7631686.007.jpg
case_images: fig7
case_images: Mismatch repair protein (MMR) immunohistochemical testing was performed which yielded a positive reaction indicating that the tumor is negative for microsatellite instability (MSI-H) (Figure 7).