Gradient inflammation in the pancreatic stump after pancreaticoduodenectomy: Two case reports and review of literature

Figure 2 Principal component analysis and unweighted pair group method with arithmetic mean analysis of bacterial distribution in both patients’ specimens. A: Principal component analysis (PCA) of bacterial distribution in patient 1; B: PCA of bacterial distribution in patient 2; C: Unweighted pair group method with arithmetic mean (UPGMA) clustering tree of the bacterial community in patient 1; D: UPGMA clustering tree of the bacterial community in patient 2. PLJB: Bacteria in patient 1’s jejunum; PLPB: Bacteria in patient 1’s pancreas; PZJB: Bacteria in patient 2’s jejunum; PZPB: Bacteria in patient 2’s pancreas.