Fig. 2
From: Primary hepatic neuroendocrine tumors: comparing CT and MRI features with pathology
CT scan and histology of grade PHNET. Post-contrast CT image of the arterial phase (a), portal venous phase (b), and delayed phase (c). The PHNET (5.4 × 5.7 cm in size) has marginal ring-like and septal enhancements (right lobe). Arterial phases reveal a wash-in pattern at the periphery of the tumor. Portal phase and delayed phase reveal slight peripheral hyper-attenuation compared with the surrounding liver parenchyma. HE staining shows liver tumor cells arranged in an island. Atypia and nucleoli were not readily apparent but nuclear chromatins were distributed in fine granules (d). Mitosis rate was 2–3/10 HPF and blood sinus was abundant in the intestinal with no hemorrhage