NCIt related terms : Gallbladder Neuroendocrine Cancer;
NCIt definition : An aggressive, high-grade, and poorly differentiated carcinoma with neuroendocrine
differentiation that arises from the gallbladder. The mitotic count is more than 20
per 10 HPF. It is classified as either small or large cell neuroendocrine carcinoma
based on the size of the malignant cells, the prominence of the nucleoli, and the
amount of cytoplasm.;