Primary hepatic neuroendocrine tumor: A case report and literature review

Figure 1 Dynamic liver magnetic resonance image showing a 6. 8-cm solid mass in segments 8 and 7. A: Image obtained in the arterial phase, showing a lobulated enhancing mass; B: Image obtained in the portal phase, showing the mass evolving into a low-density mass.

Figure 2 Pathological findings. A: Microscopic appearance of the tumoral lesion in the resected liver specimen. The architectural pattern is trabecular and glandular. Hematoxylin-eosin staining × 100; B: Diffuse, moderate immunoreactivity for chromogranin in the tumor cells. Immunohistochemical (IHC) staining, × 100; C: Negative immunoreactivity for Heppar-1 in tumor cells, and positive immunoreactivity occurs in normal hepatic cells. IHC staining, original magnification × 100; D: The Ki67 proliferation index is 10% in tumor cells. IHC staining, original magnification × 400.

Figure 3 Single-photon emission computed tomographic images obtained 24 h after the administration of indium-111 octreotide. Both the anterior and posterior whole body images show, no abnormal lesions with increased uptake. RT: Right; LT: Left.