Fig. 2From: Bile ductal mucosal dysplasia is a possible risk factor for adenocarcinoma in patients with adenomyomatous hyperplasia of the Vaterian system: a single-centre study from ChinaAH in ampulla of Vater transformation into a moderately differentiated adenocarcinoma (blue oval). Infiltrative growth of cancerous tissue in the duct wall (A); irregular tumor glandular structure, variable size glandular lumen (red arrow), infiltrative growth of individual cells, and mucus visible within some individual cells with signet-ring cell-like features (white arrow) (B, C), and tumor cell infiltrating nerve fibers (yellow arrows) (D)Back to article page