Pancreas-sparing duodenectomy with regional lymph node dissection for early-stage ampullary carcinoma: A case control study using propensity scoring methods

Figure 3 Duodenoscopic view of ampullary adenocarcinoma (A) and histopathological features of mixed type ampullary adenocarcinoma (B). A: An exposed-type tumor mass at the ampulla of Vater, with a normal ampullary orifice; B: Histopathological features of mixed type ampullary adenocarcinoma. Both intestinal and pancreatobiliary growth patterns were present (HE staining, × 200).