case_images: PMC3566947_01
case_images: Computed tomography. (A) Note the thickened wall of the ascending colon (short arrow) and enlarged lymph nodes in the mesentery (long arrow). (B) The hepatic lesion manifested ring-shaped enhancement (arrow).
case_images: 1477-7819-11-23-1.jpg
case_images: PMC3566947_01_1477-7819-11-23-1.jpg
case_images: F1
case_images: The regional enlarged lymph nodes and metastases in the liver were noted (Figure 1).
case_images: Endoscopic biopsy (A) Colonoscopy revealed a circular yellow tumor in the ascending colon.(B) An endoscopic biopsy revealed atypical epithelium (hematoxylin and eosin x100).
case_images: 1477-7819-11-23-2.jpg
case_images: PMC3566947_01_1477-7819-11-23-2.jpg
case_images: F2
case_images: A colonoscopy revealed a yellow tumor in the colon (Figure 2) and endoscopic biopsy findings suggested a poorly differentiated adenocarcinoma.
case_images: Pathologic findings.(A) Pathologic findings of the resected specimen revealed polynuclear giant cells. (B) Immunohistochemical staining was positive for human chorionic growth hormone.
case_images: 1477-7819-11-23-3.jpg
case_images: PMC3566947_01_1477-7819-11-23-3.jpg
case_images: F3
case_images: Immunohistochemical staining was positive for HCG and negative for cytokeratin 7, cytokeratin 20, villin, caudal type homeobox 2, alpha-fetoprotein and CD30 (Figure 3).