case_images: PMC5343248_01
case_images: Signet-ring cell adenocarcinoma infiltrating through the muscularis propria (MP) into pericolic adipose tissue (PC) and involving regional lymph nodes (arrow). The signet-ring cells are seen infiltrating through tissue and extending to the serosal surface (A) and are seen floating in mucin (B).
case_images: CRIONM2017-2832180.001.jpg
case_images: PMC5343248_01_CRIONM2017-2832180.001.jpg
case_images: fig1
case_images: Therefore, extended right hemicolectomy with total omentectomy and partial peritonectomy was performed, and pathologic analysis of the surgical specimens confirmed the diagnosis of poorly differentiated signet-ring cell adenocarcinoma at the hepatic flexure with penetration to the serosal surface (Figure 1).