Figure 2.

Heterogeneous nuclear ribonucleoprotein E1 (hnRNP-E1) expression in different histological types. (A) Negative control (original magnification, ×20); (B) invasive cancer showing grade 1 immunoreactivity (original magnification, ×40); (C) low grade squamous intraepithelial lesion showing grade 2 immunoreactivity (original magnification, ×40); (D) high grade squamous intraepithelial lesion (HGSIL) showing grade 3 immunoreactivity (original magnification, ×40); (E) HGSIL showing grade 4 immunoreactivity (original magnification, ×40).