PT  - JOURNAL ARTICLE
AU  - Kumar Nilesh
AU  - Srijon Mukherji
AU  - Sujata R Kanetkar
AU  - Aaditee Vande
TI  - Sinonasal inverted schneiderian papilloma presenting as a large intraoral lesion
AID  - 10.1136/bcr-2020-234985
DP  - 2020 Jul 01
TA  - BMJ Case Reports
PG  - e234985
VI  - 13
IP  - 7
4099  - http://casereports.bmj.com/content/13/7/e234985.short
4100  - http://casereports.bmj.com/content/13/7/e234985.full
SO  - BMJ Case Reports2020 Jul 01; 13
AB  - Sinonasal inverted schneiderian papilloma (ISP) is a rare tumour, which almost exclusively arises from the mucosa lining, the nasal cavity and the paranasal sinuses. The tumour in its early stages presents as an asymptomatic mass, which may be discovered during routine examination. Large lesions usually measure a few millimetres to centimetres in size and show symptoms such as nasal blockade, recurrent sinusitis, postnasal drip, anosmia, epistaxis, facial pain and headache. Lesion presenting as a large oral mass is extremely rare and may cause diagnostic dilemma, resulting in misdiagnosis. This report describes a rare case of ISP presenting as large intraoral lesion, with wide area of facial skeletal involvement. Diagnosis and management of the pathology has also been highlighted.