Table 3 Pathologic findings of 26 esophageal neuroendocrine tumors
Clinical characteristics | Number (%) |
|---|---|
No. of patients | 26 (100) |
Tumor differentiation (2000 WHO classification) | |
Well differentiated | 3 (11.5) |
Mixed | 2 (7.7) |
Poorly differentiated | 10 (38.5) |
Not mentioned | 11 (42.3) |
Tumor differentiation (2010 WHO classification) | |
G1 (mitotic count <2, Ki-67 < 2) | None |
G2 (mitotic count 2–20, Ki-67 3–20) | None |
G3 (mitotic count >20, Ki-67 > 20) | 7 (26.9) |
Not mentioned | 19 (73.0) |
Tissue immunostaining | |
Synaptophysin | 23 (88.5) |
Chromogranin A | 21 (80.8) |
CD 56 | 8 (30.8) |