Abstract
A 30-year old female presented with a 8-month history of left nasal obstruction associated with recurrent episodes of epistaxis. Left nasal cavity was filled with polypoidal mass. Computed tomography revealed a mass present in the left nasal cavity, appears to be arising from ethmoidal air cells and lateral nasal wall. Diagnostic Nasal Endoscopy was done and biopsy was taken. Report came as sinonasal malignancy of transitional cell type. Endoscopy assisted, surgical excision of the mass was done and later she was referred higher centre for further management. Non-keratinizing carcinoma (Transitional type) of the sinonasal tract is a rare entity and there are only few reports concerning this type of malignancy. This may be partly because of its diagnostic difficulty due to many synonyms such as Schneiderian carcinoma, cylindrical cell carcinoma and transitional cell carcinoma.
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