PMC9979862_01
Sigmoid lesion almost obstructing the lumen
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FIG1
Colonoscopy revealed a large polypoid mass of the sigmoid colon (30 cm away from the anal verge), obstructing the lumen (Figure 1).
CT scan revealing distended colonic (sigmoid) loops
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FIG2
Computed tomography of the abdomen showed the lesion of the sigmoid colon and many enlarged lymph nodes alongside the left common iliac artery (Figures 2, 3).
CT scan revealing distended loops and a mass almost obstructing the lumen
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FIG3
Computed tomography of the abdomen showed the lesion of the sigmoid colon and many enlarged lymph nodes alongside the left common iliac artery (Figures 2, 3).
CT scan revealing a distended gallbladder with pericholecystic edema and a large gallstone
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FIG4
It also revealed a gallbladder with signs of inflammation and a 2.2-cm gallstone (Figure 4).
(A) Moderately differentiated adenocarcinoma of the sigmoid colon. (B) Poorly differentiated adenocarcinoma of the gallbladder
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FIG5
Gallbladder histopathology revealed poorly differentiated adenocarcinoma, invading the adventitia with no lymph node involvement (stage pT2bN0) (Figure 5).