Figure 5a-b. NCCT and CECT PNS: Heterogenously enhancing lesion seen involving left ethmoid sinus with extension into the left nasal cavity with perforation of midline area, THERE WAS NO INVOLVEMENT OF ORBIT (arrow marks)

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