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Summary of immunohistochemical analysis
| Histological classification | Positive tumorsa
|
Phospho-Rb (serine-807/811)b | ||
|---|---|---|---|---|
| Rb | p16 | Cyclin D1 | ||
| Spindle | 8/9 | 9/9 | 4/9 | 3.3% (0.2–7.0%) |
| Mixed | 11/12 | 12/12 | 7/12 | 1.5% (0.1–3.9%) |
| Epithelioid | 11/11 | 11/11 | 2/11 | 1.4% (0.1–5.1%) |
Tumors were scored positive if nuclear staining was present in ≥20% of cells.
Percentage of positive cells (and range) among tumors in each histological grade.
