Bmi-1 expression in primary HL
| . | Bmi-1 expression, no./no. total (%) . | ||
|---|---|---|---|
| Negative . | Positive . | Strong positive . | |
| EBV positive | 1/14 (7) | 5/14 (36) | 8/14 (57) |
| EBV negative | 2/46 (4) | 21/46 (46) | 23/46 (50) |
| Total | 3/60 (5) | 26/60 (43) | 31/60 (52) |
| . | Bmi-1 expression, no./no. total (%) . | ||
|---|---|---|---|
| Negative . | Positive . | Strong positive . | |
| EBV positive | 1/14 (7) | 5/14 (36) | 8/14 (57) |
| EBV negative | 2/46 (4) | 21/46 (46) | 23/46 (50) |
| Total | 3/60 (5) | 26/60 (43) | 31/60 (52) |
Immunohistochemistry was used to study Bmi-1 expression in HRS cells, which was recorded as negative, positive (Bmi-1 expression weaker than or as strong as that observed in surrounding lymphocytes), or strong positive (Bmi-1 expression stronger than surrounding lymphocytes).