Adenocarcinoma of the third and fourth portions of the duodenum: The capsule endoscopy value

Figure 1 Capsule endoscopy findings in the 3^rd and 4^th portions of the duodenum. A: Polypoid and multilobular lesion; B, C: Partially obstructing the lumen; C, D: Ulcerated with low-flow bleeding.

Figure 2 Abdominal computed tomography scan demonstrating a thickening of the wall involving the 3^rd and 4^th portions of duodenum, narrowing its lumen (arrows), without clear lines of cleavage with adjacent structures and with no evidence of nodal and distant metastasis.

Figure 3 Histological findings of surgical specimen demonstrating moderately differentiated adenocarcinoma, infiltrating the wall thickness (A) (HE, magnification × 5), with areas of cribriform appearance due to fusion of glands and areas of necrosis (B) (HE, magnification × 10); A higher magnification, demonstrating dysplastic aspect of epithelium, loss of polarity and cell dysplasia (C) (HE, magnification × 100) and (D) (HE, magnification × 200). HE: Hematoxylin and eosin.