Goblet cell carcinoid of the appendix: Six case reports

Figure 4 Resected specimen and tumor mapping. A-C: Although no neoplastic changes are seen at the cecal surface or appendiceal orifice in Case 1 (A) or Case 4 (C), tumor cells have invaded widely into the cecum in Case 1 (B); D: Residual tumor cells are seen microscopically at the cecum around the appendiceal orifice in Case 4. Red lines show the existence of tumor cells.