label: Paranasal Sinus Neuroendocrine Tumor G2
label_lc: paranasal sinus neuroendocrine tumor g2
description: A well-differentiated neuroendocrine neoplasm that arises from the paranasal sinuses. There is necrosis present and/or the mitotic count is 2-10 per 2 mm2. The Ki-67 index is less than 20%.