1Shaymaa Fadhl Mohsin, MSc, 2Ban Al-Drobie, PhD, 3Bashar H. Abdullah, PhD, 4Ameer DH Hameedi, PhD1, 2. 3 Department of Oral and Maxillofacial Pathology, College of Dentistry, Baghdad University, Baghdad, Iraq.4 Department of Pathology, College of Medicine, Baghdad University, Baghdad, Iraq. Corresponding author: Shaymaa Fadhl MohsinE-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Received 13 October 2022. Accepted for publication on December 09, 2022.Published March 16, 2023. Abstract Background sinonasal papilloma, a rare sinonasal lesion that makes up about 0.5% to 4% of all sinonasal tract tumours, is also known as Schneiderian papillomas Tumors. Although benign, the tumor tends to recurrence, local invasiveness, and malignant transformation.…