case_images: PMC5676375_01
case_images: Large, ulcerated mass in the sigmoid colon seen during colonoscopy.
case_images: CRIGM2017-9382486.001.jpg
case_images: PMC5676375_01_CRIGM2017-9382486.001.jpg
case_images: fig1
case_images: Colonoscopy showed a 2 cm, nonobstructing, ulcerated mass in the sigmoid colon (Figure 1).
case_images: Hematoxylin and eosin staining shows fragments of large atypical cells with focal gland formation consistent with an adenocarcinoma.
case_images: CRIGM2017-9382486.002.jpg
case_images: PMC5676375_01_CRIGM2017-9382486.002.jpg
case_images: fig2
case_images: Biopsies of the sigmoid mass were consistent with an adenocarcinoma (Figure 2).
case_images: Cytokeratin 7 (CK7) typically stains positive (dark brown) in carcinomas of epithelial origin including endometrial cancer.
case_images: CRIGM2017-9382486.003.jpg
case_images: PMC5676375_01_CRIGM2017-9382486.003.jpg
case_images: fig3
case_images: Normal colon mucosa on the left with the margin of tumor on the right containing large, atypical cells consistent with adenocarcinoma.
case_images: CRIGM2017-9382486.004.jpg
case_images: PMC5676375_01_CRIGM2017-9382486.004.jpg
case_images: fig4
case_images: Histology of the surgical specimen confirmed metastatic endometrioid adenocarcinoma in the small bowel and sigmoid tumors (Figure 4).