Table 1 Summary of clinicopathological features in each case of sessile serrated adenoma/polyp (SSA/P) with dysplasia and invasive adenocarcinoma
Case No. | Age | Sex | Location | Macroscopic type | Size (mm) | Histological type | Depth of invasion (μm) | Mucinous component | Lymphatic invasion | Vascular invasion | Lymph node metastasis | Removal method |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 67 | F | A | Sessile | 10 | HGD | Mucosa | – | – | – | – | EMR |
2 | 69 | M | S | Semipedunculated | 10 | HGD | Mucosa | – | – | – | – | EMR |
3 | 79 | F | C | Sessile | 14 | HGD | Mucosa | – | – | – | – | EMR |
4 | 61 | F | A | Sessile | 18 | HGD | Mucosa | – | – | – | – | ESD |
5 | 61 | M | D | Sessile | 31 | Well-ACA | Submucosa (400) | – | – | – | – | ESD + OPE |
6 | 75 | F | A | Sessile | 15 | Well-ACA | Submucosa (1100) | – | – | – | – | EMR + OPE |
7 | 73 | F | A | Sessile | 25 | Mod-ACA | Submucosa (2000) | – | + | – | + | OPE |
8 | 65 | F | T | Sessile | 19 | Mod-ACA | Submucosa (4000) | + | – | – | – | OPE |