Schneiderian papilloma

What is a Schneiderian papilloma? A Schneiderian papilloma is a non-cancerous tumour that starts from the tissue that lines the inside of the nasal cavity and paranasal sinus. Pathologists divide Schneiderian papillomas into three types: inverted, exophytic, and oncocytic (see below for more information). Schneiderian papillomas can grow into surrounding tissues but the tumour cells …
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