FIGURE 1

A, appendiceal cystadenoma involving diverticulum that penetrates between muscle bundles (arrow) at the vascular hiatus (hematoxylin and eosin, 40 ×). B, higher power view showing adenomatous epithelium present within diverticulum (100 ×).

A, appendiceal cystadenoma involving diverticulum that penetrates between muscle bundles (arrow) at the vascular hiatus (hematoxylin and eosin, 40 ×). B, higher power view showing adenomatous epithelium present within diverticulum (100 ×).