DOI: 10.21276/sajp

Pages: 206-211

Inverted papilloma is a tumour which arising from the lateral wall of the nasal cavity. It is common in males in 4th to 6th decades and is fairly uncommon neoplasm of the nasal region. The epithelium of this tumour consist of many layers, typically squamus or ciliated columnar cells. Sometimes transitional epithelium enclosed by layer of columnar or squamous cells. A peroxidase-labeled streptavidin-biotin technique was used in Immunohistochemical staining. The staining strength of epithelial cells in nasal papilloma mucosa was analogous to the nasal mucosa of inferior turbinate. The staining was detained to the cytoplasm as well as the plasma membrane, which was deep in the basal part and feeble in the upper part. Total removal of the tumour should be done as final management of inverted papillomas with very long term follow-up ( nearly 2 years ) to notice any consequent recurrences