Table 4.
Semiquantitative Evaluation of Immunohistochemical Positivity for CDK2
| Histology | % positive tumor cells | Total no. of cases | ||||
|---|---|---|---|---|---|---|
| 0 | <5% | <30% | <50% | <100% | ||
| Squamous cell carcinoma (55 cases) | ||||||
| W* | 1 | 5 | 5 | 3 | 2 | 16 |
| M* | 0 | 3 | 7 | 11 | 6 | 27 |
| P* | 0 | 2 | 2 | 5 | 3 | 12 |
| Adenocarcinoma (58 cases) | ||||||
| W | 2 | 5 | 14 | 4 | 0 | 25 |
| M | 4 | 3 | 8 | 7 | 0 | 22 |
| P | 0 | 2 | 4 | 4 | 1 | 11 |
| Small cell carcinoma (36 cases) | 0 | 1 | 13 | 15 | 7 | 36 |
| Large cell carcinoma (41 cases) | 0 | 6 | 14 | 15 | 6 | 41 |
*Subtypes: W, well differentiated; M, moderately differentiated; P, poorly differentiated.