Table 7.
Case distributions of pathological stages by cell types or WHO subtypes
| Subclassification | No. of cases (%) | |||
|---|---|---|---|---|
| Pathological stages | ||||
| I | II | III | IV | |
| Cell type classification† | ||||
| Hobnail* | 62 (62) | 7 (7) | 30 (30) | 1 (1) |
| Mixed | 18 (37) | 4 (8) | 26 (53) | 1 (2) |
| Columnar/cuboidal | 19 (43) | 3 (7) | 20 (45) | 2 (5) |
| Polygonal/oval | 5 (26) | 3 (16) | 11 (58) | 0 |
| Goblet | 4 (67) | 0 | 1 (17) | 1 (17) |
| WHO classification | ||||
| Acinar | 17 (52) | 1 (3) | 14 (42) | 1 (3) |
| Papillary | 13 (50) | 0 | 13 (50) | 0 |
| Solid adenocarcinoma with mucin | 2 (20) | 2 (20) | 6 (60) | 0 |
| Adenocarcinoma with mixed subtypes | 76 (51) | 14 (9) | 55 (37) | 4 (3) |
*vs mixed, columnar/cuboidal, polygonal/oval, P < 0.05, respectively, by chi‐squared test (I vs II–IV). †One hobnail and one goblet case, both of which were classified into BA carcinoma by the World Health Organisation (WHO) classification, were excluded from original cases.