Figure 10b. Early gastric carcinoma in a 59-year-old man. (a, b) Image from a double-contrast barium study (a) and CT scan obtained with water as an oral contrast agent (b) show a large polypoid lesion with a lobulated surface in the anterior wall of the proximal antrum (arrow). (c) Photograph of the gastrectomy specimen shows a polypoid lesion measuring 3.7 x 2.2 cm in the anterior wall of the gastric antrum (arrow). Surface lobulation is also noted. Histologic analysis revealed that the lesion was an adenocarcinoma confined to the mucosa and submucosa.