Inverted papilloma (IP) is histologically classified as a benign nasal tumor. However, its aggressive local invasive character can lead to devastating morbidity, with a 10 to 20% rate of malignant transformation. Because of its proclivity for the lateral nasal wall, it is routinely treated with en-bloc resection. IP involving the palate is rare. We describe a case of IP without coexistent carcinoma completely eroding the hard palate, nasal septum, and bilateral nasal walls, in a 23-year-old woman in her seventh month of pregnancy.
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