Figure 1. a-b (10X-40X) H&E: Photomicrograph showing transitional cell papilloma with mitotic activity (arrow mark)

From

Transitional Cell Papilloma of Nasal Cavity with Malignant Transformation

Vijaya KJ, Kaur P, Khurana A, Chauhan A, Singh G, Parmar P

American Journal of Medical Case Reports. 2015, 3(8), 231-234 doi:10.12691/ajmcr-3-8-3