label: Head and Neck Neuroendocrine Tumor G3
label_lc: head and neck neuroendocrine tumor g3
description: A neuroendocrine neoplasm that arises from the head and neck. The mitotic count is more than 10 per 2 mm2, the Ki-67 index is more than 20%, and there is absence of small cell neuroendocrine carcinoma and large cell neuroendocrine carcinoma cytomorphological features.